diff --git a/packages/Php/src/Rector/FuncCall/CreateFunctionToAnonymousFunctionRector.php b/packages/Php/src/Rector/FuncCall/CreateFunctionToAnonymousFunctionRector.php
index ff8d71b2fd3..3f64307448b 100644
--- a/packages/Php/src/Rector/FuncCall/CreateFunctionToAnonymousFunctionRector.php
+++ b/packages/Php/src/Rector/FuncCall/CreateFunctionToAnonymousFunctionRector.php
@@ -159,7 +159,6 @@ CODE_SAMPLE
             $paramNames[] = $this->getName($paramNode);
         }
 
-        /** @var Variable[] $variableNodes */
         $variableNodes = $this->betterNodeFinder->findInstanceOf($nodes, Variable::class);
 
         $filteredVariables = [];
@@ -169,11 +168,12 @@ CODE_SAMPLE
                 continue;
             }
 
-            if (in_array($this->getName($variableNode), $paramNames, true)) {
+            $variableName = $this->getName($variableNode);
+            if (in_array($variableName, $paramNames, true)) {
                 continue;
             }
 
-            $filteredVariables[$this->getName($variableNode)] = $variableNode;
+            $filteredVariables[$variableName] = $variableNode;
         }
 
         return $filteredVariables;
diff --git a/packages/Php/src/Rector/FunctionLike/Php4ConstructorRector.php b/packages/Php/src/Rector/FunctionLike/Php4ConstructorRector.php
index 87559a0c447..fffdb756cd4 100644
--- a/packages/Php/src/Rector/FunctionLike/Php4ConstructorRector.php
+++ b/packages/Php/src/Rector/FunctionLike/Php4ConstructorRector.php
@@ -12,7 +12,7 @@ use PhpParser\Node\Stmt\Class_;
 use PhpParser\Node\Stmt\ClassMethod;
 use PhpParser\Node\Stmt\Expression;
 use Rector\NodeTypeResolver\Node\Attribute;
-use Rector\PhpParser\Node\BetterNodeFinder;
+use Rector\PhpParser\Node\Maintainer\ClassMaintainer;
 use Rector\Rector\AbstractRector;
 use Rector\RectorDefinition\CodeSample;
 use Rector\RectorDefinition\RectorDefinition;
@@ -23,13 +23,13 @@ use Rector\RectorDefinition\RectorDefinition;
 final class Php4ConstructorRector extends AbstractRector
 {
     /**
-     * @var BetterNodeFinder
+     * @var ClassMaintainer
      */
-    private $betterNodeFinder;
+    private $classMaintainer;
 
-    public function __construct(BetterNodeFinder $betterNodeFinder)
+    public function __construct(ClassMaintainer $classMaintainer)
     {
-        $this->betterNodeFinder = $betterNodeFinder;
+        $this->classMaintainer = $classMaintainer;
     }
 
     public function getDefinition(): RectorDefinition
@@ -73,9 +73,7 @@ CODE_SAMPLE
      */
     public function refactor(Node $node): ?Node
     {
-        $namespace = $node->getAttribute(Attribute::NAMESPACE_NAME);
-        // catch only classes without namespace
-        if ($namespace) {
+        if ($this->shouldSkip($node)) {
             return null;
         }
 
@@ -84,21 +82,16 @@ CODE_SAMPLE
             return null;
         }
 
-        // anonymous class → skip
-        if ($classNode->name === null || $node->isAbstract() || $node->isStatic()) {
-            return null;
-        }
-
         // process parent call references first
         $this->processClassMethodStatementsForParentConstructorCalls($node);
 
         // not PSR-4 constructor
-        if (! $this->isNameInsensitive($classNode, (string) $node->name)) {
+        if (! $this->isNameInsensitive($classNode, $this->getName($node))) {
             return null;
         }
 
         // does it already have a __construct method?
-        if (! in_array('__construct', $this->getClassMethodNames($classNode), true)) {
+        if (! $this->classMaintainer->hasClassMethod($classNode, '__construct')) {
             $node->name = new Identifier('__construct');
         }
 
@@ -120,6 +113,26 @@ CODE_SAMPLE
         return $node;
     }
 
+    private function shouldSkip(ClassMethod $classMethod): bool
+    {
+        $namespace = $classMethod->getAttribute(Attribute::NAMESPACE_NAME);
+        // catch only classes without namespace
+        if ($namespace !== null) {
+            return true;
+        }
+
+        if ($classMethod->isAbstract() || $classMethod->isStatic()) {
+            return true;
+        }
+
+        $classNode = $classMethod->getAttribute(Attribute::CLASS_NODE);
+        if ($classNode instanceof Class_ && $classNode->name === null) {
+            return true;
+        }
+
+        return false;
+    }
+
     private function processClassMethodStatementsForParentConstructorCalls(ClassMethod $classMethodNode): void
     {
         if (! is_iterable($classMethodNode->stmts)) {
@@ -140,22 +153,6 @@ CODE_SAMPLE
         }
     }
 
-    /**
-     * @return string[]
-     */
-    private function getClassMethodNames(Class_ $classNode): array
-    {
-        $classMethodNames = [];
-
-        /** @var ClassMethod[] $classMethodNodes */
-        $classMethodNodes = $this->betterNodeFinder->findInstanceOf($classNode->stmts, ClassMethod::class);
-        foreach ($classMethodNodes as $classMethodNode) {
-            $classMethodNames[] = $this->getName($classMethodNode);
-        }
-
-        return $classMethodNames;
-    }
-
     private function isThisConstructCall(Node $node): bool
     {
         if (! $node instanceof MethodCall) {
@@ -191,16 +188,16 @@ CODE_SAMPLE
         }
 
         // rename ParentClass
-        if ((string) $node->class === $parentClassName) {
+        if ($this->isName($node->class, $parentClassName)) {
             $node->class = new Name('parent');
         }
 
-        if ((string) $node->class !== 'parent') {
+        if ($this->isName($node->class, 'parent') === false) {
             return;
         }
 
         // it's not a parent PHP 4 constructor call
-        if (! $this->isNameInsensitive($node, $parentClassName)) {
+        if ($this->isNameInsensitive($node, $parentClassName) === false) {
             return;
         }
 
diff --git a/src/PhpParser/Node/Maintainer/ClassMaintainer.php b/src/PhpParser/Node/Maintainer/ClassMaintainer.php
index 7db2efe0ce2..1bad73fa4ee 100644
--- a/src/PhpParser/Node/Maintainer/ClassMaintainer.php
+++ b/src/PhpParser/Node/Maintainer/ClassMaintainer.php
@@ -10,6 +10,7 @@ use PhpParser\Node\Stmt\Expression;
 use PhpParser\Node\Stmt\Nop;
 use PhpParser\Node\Stmt\Property;
 use PhpParser\Node\Stmt\TraitUse;
+use Rector\PhpParser\Node\BetterNodeFinder;
 use Rector\PhpParser\Node\NodeFactory;
 use Rector\PhpParser\Node\Resolver\NameResolver;
 use Rector\PhpParser\Node\VariableInfo;
@@ -32,14 +33,21 @@ final class ClassMaintainer
      */
     private $childAndParentClassMaintainer;
 
+    /**
+     * @var BetterNodeFinder
+     */
+    private $betterNodeFinder;
+
     public function __construct(
         NameResolver $nameResolver,
         NodeFactory $nodeFactory,
-        ChildAndParentClassMaintainer $childAndParentClassMaintainer
+        ChildAndParentClassMaintainer $childAndParentClassMaintainer,
+        BetterNodeFinder $betterNodeFinder
     ) {
         $this->nodeFactory = $nodeFactory;
         $this->nameResolver = $nameResolver;
         $this->childAndParentClassMaintainer = $childAndParentClassMaintainer;
+        $this->betterNodeFinder = $betterNodeFinder;
     }
 
     public function addConstructorDependency(Class_ $classNode, VariableInfo $variableInfo): void
@@ -208,6 +216,13 @@ final class ClassMaintainer
         return false;
     }
 
+    public function hasClassMethod(Class_ $classNode, string $methodName): bool
+    {
+        $methodNames = $this->getClassMethodNames($classNode);
+
+        return in_array($methodName, $methodNames, true);
+    }
+
     private function tryInsertBeforeFirstMethod(Class_ $classNode, Stmt $node): bool
     {
         foreach ($classNode->stmts as $key => $classElementNode) {
@@ -283,6 +298,21 @@ final class ClassMaintainer
         $classMethodNode->stmts[] = new Expression($propertyAssignNode);
     }
 
+    /**
+     * @return string[]
+     */
+    private function getClassMethodNames(Class_ $classNode): array
+    {
+        $classMethodNames = [];
+
+        $classMethodNodes = $this->betterNodeFinder->findInstanceOf($classNode->stmts, ClassMethod::class);
+        foreach ($classMethodNodes as $classMethodNode) {
+            $classMethodNames[] = $this->nameResolver->resolve($classMethodNode);
+        }
+
+        return $classMethodNames;
+    }
+
     private function hasMethodParameter(ClassMethod $classMethodNode, VariableInfo $variableInfo): bool
     {
         foreach ($classMethodNode->params as $constructorParameter) {
diff --git a/src/Rector/Architecture/DependencyInjection/ReplaceVariableByPropertyFetchRector.php b/src/Rector/Architecture/DependencyInjection/ReplaceVariableByPropertyFetchRector.php
index 9d6b359769d..c480a9bcbf6 100644
--- a/src/Rector/Architecture/DependencyInjection/ReplaceVariableByPropertyFetchRector.php
+++ b/src/Rector/Architecture/DependencyInjection/ReplaceVariableByPropertyFetchRector.php
@@ -7,7 +7,6 @@ use PhpParser\Node;
 use PhpParser\Node\Expr\Variable;
 use PhpParser\Node\Stmt\ClassMethod;
 use Rector\Configuration\Rector\Architecture\DependencyInjection\VariablesToPropertyFetchCollection;
-use Rector\Exception\ShouldNotHappenException;
 use Rector\NodeTypeResolver\Node\Attribute;
 use Rector\Rector\AbstractRector;
 use Rector\RectorDefinition\CodeSample;
@@ -107,11 +106,12 @@ CODE_SAMPLE
         return null;
     }
 
-    private function isInControllerActionMethod(Node $node): bool
+    private function isInControllerActionMethod(Variable $node): bool
     {
         $className = $node->getAttribute(Attribute::CLASS_NAME);
+
         if ($className === null) {
-            throw new ShouldNotHappenException();
+            return false;
         }
 
         if (! Strings::endsWith($className, 'Controller')) {
diff --git a/src/Rector/Psr4/MultipleClassFileToPsr4ClassesRector.php b/src/Rector/Psr4/MultipleClassFileToPsr4ClassesRector.php
index 7e8aaaa948c..351815254e5 100644
--- a/src/Rector/Psr4/MultipleClassFileToPsr4ClassesRector.php
+++ b/src/Rector/Psr4/MultipleClassFileToPsr4ClassesRector.php
@@ -122,7 +122,6 @@ CODE_SAMPLE
             $smartFileInfo->getRealPath()
         );
 
-        /** @var Namespace_[] $namespaceNodes */
         $namespaceNodes = $this->betterNodeFinder->findInstanceOf($newStmts, Namespace_::class);
 
         if ($this->shouldSkip($smartFileInfo, $newStmts, $namespaceNodes)) {
diff --git a/utils/phpstan/config/phpstan-extensions.neon b/utils/phpstan/config/phpstan-extensions.neon
index f46522c60d2..a347cbca42e 100644
--- a/utils/phpstan/config/phpstan-extensions.neon
+++ b/utils/phpstan/config/phpstan-extensions.neon
@@ -1,5 +1,8 @@
 services:
+    - Rector\PHPStanExtensions\Utils\ValueResolver
+
     - { class: Symplify\PHPStanExtensions\Type\SplFileInfoTolerantDynamicMethodReturnTypeExtension, tags: [phpstan.broker.dynamicMethodReturnTypeExtension] }
+
     # $node->geAttribute($1) => Type|null by $1
     - { class: Rector\PHPStanExtensions\Rector\Type\GetAttributeReturnTypeExtension, tags: [phpstan.broker.dynamicMethodReturnTypeExtension] }
 
@@ -7,3 +10,6 @@ services:
     - { class: Rector\PHPStanExtensions\Rector\Type\NameResolverReturnTypeExtension, tags: [phpstan.broker.dynamicMethodReturnTypeExtension] }
     # $nameResolverTrait->getName() => in some cases always string
     - { class: Rector\PHPStanExtensions\Rector\Type\NameResolverTraitReturnTypeExtension, tags: [phpstan.broker.dynamicMethodReturnTypeExtension] }
+
+    # $betterNodeFinder->findByInstance(..., $1) => $1[]
+    - { class: Rector\PHPStanExtensions\Rector\Type\BetterNodeFinderReturnTypeExtension, tags: [phpstan.broker.dynamicMethodReturnTypeExtension] }
diff --git a/utils/phpstan/src/Rector/Type/BetterNodeFinderReturnTypeExtension.php b/utils/phpstan/src/Rector/Type/BetterNodeFinderReturnTypeExtension.php
new file mode 100644
index 00000000000..d7d5f5016ef
--- /dev/null
+++ b/utils/phpstan/src/Rector/Type/BetterNodeFinderReturnTypeExtension.php
@@ -0,0 +1,58 @@
+<?php declare(strict_types=1);
+
+namespace Rector\PHPStanExtensions\Rector\Type;
+
+use PhpParser\Node\Expr\ClassConstFetch;
+use PhpParser\Node\Expr\MethodCall;
+use PhpParser\Node\Name;
+use PHPStan\Analyser\Scope;
+use PHPStan\Reflection\MethodReflection;
+use PHPStan\Reflection\ParametersAcceptorSelector;
+use PHPStan\Type\ArrayType;
+use PHPStan\Type\DynamicMethodReturnTypeExtension;
+use PHPStan\Type\MixedType;
+use PHPStan\Type\ObjectType;
+use PHPStan\Type\Type;
+use Rector\PhpParser\Node\BetterNodeFinder;
+use Rector\PHPStanExtensions\Utils\ValueResolver;
+
+final class BetterNodeFinderReturnTypeExtension implements DynamicMethodReturnTypeExtension
+{
+    /**
+     * @var ValueResolver
+     */
+    private $valueResolver;
+
+    public function __construct(ValueResolver $valueResolver)
+    {
+        $this->valueResolver = $valueResolver;
+    }
+
+    public function getClass(): string
+    {
+        return BetterNodeFinder::class;
+    }
+
+    public function isMethodSupported(MethodReflection $methodReflection): bool
+    {
+        return $methodReflection->getName() === 'findInstanceOf';
+    }
+
+    public function getTypeFromMethodCall(MethodReflection $methodReflection, MethodCall $methodCall, Scope $scope): Type
+    {
+        $returnType = ParametersAcceptorSelector::selectSingle($methodReflection->getVariants())->getReturnType();
+
+        $secondArgumentNode = $methodCall->args[1]->value;
+        if (! $secondArgumentNode instanceof ClassConstFetch) {
+            return $returnType;
+        }
+
+        if (! $secondArgumentNode->class instanceof Name) {
+            return $returnType;
+        }
+
+        $class = $secondArgumentNode->class->toString();
+
+        return new ArrayType(new MixedType(), new ObjectType($class));
+    }
+}
diff --git a/utils/phpstan/src/Rector/Type/GetAttributeReturnTypeExtension.php b/utils/phpstan/src/Rector/Type/GetAttributeReturnTypeExtension.php
index 75324437742..991fd9c3d0b 100644
--- a/utils/phpstan/src/Rector/Type/GetAttributeReturnTypeExtension.php
+++ b/utils/phpstan/src/Rector/Type/GetAttributeReturnTypeExtension.php
@@ -26,6 +26,7 @@ use PHPStan\Type\Type;
 use PHPStan\Type\UnionType;
 use Rector\Php\PhpTypeSupport;
 use Rector\Php\TypeAnalyzer;
+use Rector\PHPStanExtensions\Utils\ValueResolver;
 use Symplify\PackageBuilder\FileSystem\SmartFileInfo;
 
 final class GetAttributeReturnTypeExtension implements DynamicMethodReturnTypeExtension
@@ -53,6 +54,15 @@ final class GetAttributeReturnTypeExtension implements DynamicMethodReturnTypeEx
         'Rector\NodeTypeResolver\Node\Attribute::CLASS_NAME' => 'string',
         'Rector\NodeTypeResolver\Node\Attribute::METHOD_NAME' => 'string',
     ];
+    /**
+     * @var ValueResolver
+     */
+    private $valueResolver;
+
+    public function __construct(ValueResolver $valueResolver)
+    {
+        $this->valueResolver = $valueResolver;
+    }
 
     public function getClass(): string
     {
@@ -92,22 +102,10 @@ final class GetAttributeReturnTypeExtension implements DynamicMethodReturnTypeEx
 
     private function resolveArgumentValue(Expr $node): ?string
     {
-        $value = null;
-
         if ($node instanceof ClassConstFetch) {
-            if ($node->class instanceof Name) {
-                $value = $node->class->toString();
-            } else {
-                return null;
-            }
-
-            if ($node->name instanceof Identifier) {
-                $value .= '::' . $node->name->toString();
-            } else {
-                return null;
-            }
+            return $this->valueResolver->resolveClassConstFetch($node);
         }
 
-        return $value;
+        return null;
     }
 }
diff --git a/utils/phpstan/src/Utils/ValueResolver.php b/utils/phpstan/src/Utils/ValueResolver.php
new file mode 100644
index 00000000000..3952e0773ff
--- /dev/null
+++ b/utils/phpstan/src/Utils/ValueResolver.php
@@ -0,0 +1,29 @@
+<?php declare(strict_types=1);
+
+namespace Rector\PHPStanExtensions\Utils;
+
+use PhpParser\Node\Expr\ClassConstFetch;
+use PhpParser\Node\Identifier;
+use PhpParser\Node\Name;
+
+final class ValueResolver
+{
+    public function resolveClassConstFetch(ClassConstFetch $classConstFetch): ?string
+    {
+        $value = null;
+
+        if ($classConstFetch->class instanceof Name) {
+            $value = $classConstFetch->class->toString();
+        } else {
+            return null;
+        }
+
+        if ($classConstFetch->name instanceof Identifier) {
+            $value .= '::' . $classConstFetch->name->toString();
+        } else {
+            return null;
+        }
+
+        return $value;
+    }
+}