Board Thread:Questions and Answers/@comment-31049330-20170411160117/@comment-5885873-20170604190606

Mermaid Melody

Chance Pop Session

Nijiiro Prism Girl - not quite idol, a bunch of short OVAs, but interesting

Symphogear - it's targeted towards more mature audiences, but still interesting

Lemon Angel Project

Locodol - more slice-of-life than idol, but includes idols

Fancy Lala - similar to Full Moon but more childlike

LilPri - more for kids, but still idol

Ojamajo Doremi - not exactly idol, but one character is an idol and involves some idol episodes

BanG Dream - more band than idol, but still a wonderful anime