Juuni Senshi Bakuretsu Eto Ranger

Both are fantasy stories that get inspired by classic fairytales and integrate them into the story, dealing with a different fairytale as the story progresses. If you're also into anthropomorphism you will surely like the other series. 

Both are about children's stories, but they approach them in different ways, and they also have monsters of the week. 

The main characters in both action shows consist of anthropomorphic animals who fight evil monsters, but Eto Ranger's characters all wear clothes instead of just accessories. 

Both are quirky and filled with comedy and action. The characters in both shows are wacky and developed. But Eto Ranger is longer and more obscure than FlCl. 

Main genres of both series is adventure by going into different world. Those two series mainly targets for younger audience but both still have great storyline.