Uta no☆Prince-sama♪ Maji Love 1000%, Aikatsu! Recommendations
Aikatsu is pretty much Uta no Princess Sama.
Why? Because both anime take place in idol training school, and they are boarding schools. They also have a character who is interested in a music star. They also have characters who are music stars. Just flip the gender and they are exactly alike! So if you like Aikatsu, you will love Uta no Prince Sama!
Just take both anime and change the gender of the characters. They are both music related, and have to do particularly with characters pursuing their dreams. Additionally, they go to school to become future idols. Essentially, if you like Aikatsu!, you just might come across liking Uta no Prince-sama.