If you're looking for anime similar to King of Prism: Shiny Seven Stars II - Kakeru x George x Minato, you might like these titles.
The members of Jupiter — Amagase Touma, Mitarai Shouta, and Ijuuin Hokuto — are aiming to be the best in the idol industry. As their concerts start selling out and their popularity increase, they experience issues.
Soon after their live concert with all 13 members, 765 Pro's all-star idols are given great news: They will be performing a concert at an arena, and will have back-up dancers sent from the idol training school to support them. In the midst of this, the always cheerful Haruka Amami is voted as leader of the idols. Everything was looking up for 765 Pro, until bad news begins to strike. In the face of new barriers, Haruka wavers on her position as leader. However, she must stand up, and gather all the idols together once again for the greatest concert they've ever performed.
Akira Kiyose, who sings on a video streaming site under the singer name "KIKUNOYU." One day the talent agency sMiLea Production scouts him. sMiLea is an agency founded by the retired legendary idol pair AneLa to train new budding idols. Akira then forms an idol group with Banri Naoe and Chihiro Isuzugawa, who were also scouted. Their new group, Protostar, will have their debut alongside other new idol groups with sMiLea Production: Legit and Jaxx Jaxx.