If you're looking for anime similar to Tsukiuta. The Animation, you might like these titles.
Tsubasa is a new hire in the A&R department of the major recording company Gandala Music. Tsubasa is immediately assigned to oversee the idol unit "B-PROJECT," which is made up of three idol groups: Kitakore, Thrive, and MooNs. This is Tsubasa's first job, and she gets involved in various incidents and accidents as she deals with this group of young men who each have their own differing personalities.
When Haruka gets the chance to take the entrance exam for Saotome Academy for the Performing Arts, it seems as though she’s one step closer to her dream of composing songs for her favorite singer, Hayato. However, this is no gleeful high school musical experience, and Haruka’s hiding a dreadful secret that may silence her musical ambitions forever. And even if she does get into Saotome, the competition will be more brutal than going on Japan’s Top Idol!
Colorful and Fluffy
Each Episode focuses on one boy and his story
No Female Lead in Tsukiuta
Tsukiuta boys are already idols, Utapri shows them working to become idols
The anime follows the Marginal#4 idol unit, who made their debut at Rejet's fictional Pythagoras Production label on February 13. The members give their all for their fans in their idol activities, but they are also normal high school students. The anime will follow both their everyday lives as high school students and their lives as idols.
If you enjoy it, you might as well enjoy the other one, because they are both about idols, and their life in general, there is also comedy, but also cringe moments, but, it's funny and all, so you should try and watch them !