AbstractFactory.php

<?php

abstract class AbstractFactory {
  public function getBindings() {
    return [
      Foo::class,
      Bar::class
    ];
  }
  
  public function instantiate($binding) {
    return new Whatever;
  }
}

SomeServiceProvider.php

<?php

class SomeServiceProvider extends ServiceProvider {
  
  protected function bindFactory(AbstractFactory $f) {
    foreach ($f->getBindings() as $binding) {
      $this->app->bind($binding, function ($app) use ($f, $binding) {
        return $f->instantiate($binding);
      });
    }
  }
  
}