 If you liked
Happy Seven: The TV Manga
|
 ...then you might like
Yuuki Yuuna wa Yuusha de Aru
|
Both involve a group of school club members who can transform into magical girls (+1 magical boy in Happy Seven) to fight off enemies. In Yuki Yuna is a Hero, they travel into a new world to fight enemies that threaten the world, while in Happy Seven, the team defeats demons that possess people. While the characters use their magical powers to fight, they also like to help others to better their lives.