abstract class AbstrctActionController implements ActionControllerInterface {

    public function do(): void {
        $this->getModelClass()::findOrFail($id)
    }

}

interface ActionControllerInterface {

    public function getModelClass(): string;

}

class ModelAController extends AbstrctActionController {

    public function getModelClass(): string {
        return Model::class;
    }

}

class ModelBController extends AbstrctActionController {

    public function getModelClass(): string {
        return ModelB::class;
    }

}

class ModelCController extends AbstrctActionController {

    public function getModelClass(): string {
        return ModelC::class;
    }

}