J-Pop/J-Idol Recommendations ??

I want to get more into jpop, specifically idols, but im having a hard time branching away from the fictional/anime groups

i really like more more jump + the love live groups (aqours, muse, liella etc), and i discovered and like the group wasuta !!

does anyone have recommendations for j-idol groups or tips on how to find some of their music ?? when i try to search on spotify just general pop music comes up, not much specifically idol pop