If you're looking for anime similar to Oumagadoki Doubutsuen, you might like these titles.
Deep in the mountains lies a library with the same name as one of its caretakers, Kokoro. With her sisters Inna and Aruto, she strives to uphold the best characteristic of a librarian -- to help users with all her heart. Join young Kokoro as she starts the journey to become a full-fledged librarian, while learning about life, and being the best she can be.
Casa Clubs, Jo Diamonds, Coco Hearts and Sunday Spades make up the Crown Knights -- a card wielding team of deadly females who make it their business to stop crime and keep harm from happening to their kingdom! The beautiful vixens' ability will be put to the ultimate test when a pair of black and white mechanical chess pieces invade the tranquillity of their home, destroying everything in their path! Can the girls defeat the oncoming behemoths before it's too late?
Chika, Matsuri, Miu, Ana and Noboe are back, and ready for more slow-paced misadventures! All Noboe wants to do is get a job, but the obnoxious and interfering Miu will not have such a thing. Meanwhile, Matsuri is being taught to be a leader with the help of a… horse head?! Ana can no longer hide her Japanese-talking secret, the whole crew mess around with bunny ears and lion costumes, and trips to the library and school abound. It’s just another day in the life of these friends!