Argonavis from BanG Dream!

AGRONAVIS focuses on boy bands, while I-Chu is focused on male idols. Both shows features a predominantly male cast and with a musical theme, with a plotline that revolves around doing what you like and to pursue your passion. In addition, both franchises have video games made on their cast, and both shows have featured a number of great songs across the episodes that aired. If you enjoy slice of life shows and music themed anime, these shows are definitely for you.  

Both anime tells about the band. How they find members, perform on stage, drama between members, meet other bands and make friends with them. Basically this anime is the same, the only different is gender,age, and extra angst