protected function getCollectionRoute(EntityTypeInterface $entity_type) {
    if ($entity_type->hasLinkTemplate('collection') && $entity_type->hasListBuilderClass()) {
      $entity_type_id = $entity_type->id();
      $route = new Route($entity_type->getLinkTemplate('collection'));
      $route
        ->setDefaults([
          '_entity_list' => $entity_type_id,
          '_title' => "{$entity_type->getLabel()} list",
        ])
        ->setRequirement('_permission', 'access font overview')
        ->setOption('_admin_route', TRUE);

      return $route;
    }
  }