All classes that implement EntityRenderControllerInterface

class \Drupal\Core\Entity\EntityRenderController implements EntityRenderControllerInterface
class \Drupal\aggregator\FeedRenderController
class \Drupal\aggregator\ItemRenderController
class \Drupal\block\BlockRenderController implements EntityRenderControllerInterface
class \Drupal\comment\CommentRenderController
class \Drupal\contact\MessageRenderController
class \Drupal\custom_block\CustomBlockRenderController
class \Drupal\entity_test\EntityTestRenderController
class \Drupal\node\NodeRenderController
class \Drupal\taxonomy\TermRenderController
class \Drupal\tour\TourRenderController