If you're looking for anime similar to Letter Bee Academy, you might like these titles.
The hit show Attack on Titan is reimagined in this feel-good junior high microseries! See all your favorite characters getting into middle school shenanigans complete with secret love interests, class presidents, and chaotic cultural festivals. Eren and his friends are the hapless first-year students at Attack Junior High, a unique school for both humans and Titans alike. That's right... Titans go to class, too-in their own gigantic classrooms with their larger-than-life school supplies and benches as big as buildings! And while most humans are happy to avoid the massive monstrosities, Eren will stop at nothing to exact revenge on the hungry Titan who ate something more precious than human life-his mom's homemade chee-burg bento! Join the secret Scout Regiment as they plan to stop the Titans while Eren masters the omni-directional mobility gear to clean the massive wall surrounding the campus.
A comedy centred around a strange bird-like, yet very hefty and incredibly gluttonous creature called Ganmo. Ganmo tries to clear his bad reputation, by helping around the house or giving a hand anytime he can, but he always ends up causing more trouble than good.
The story is about a young boy named Arashi Ishino who is obsessed with video games. He would spend all his time trying to beat the games and conquer the local arcades. He would meet competitors like Satoru Daimonji and Ishii, who would try to out match him with higher scores.