Preferably new releases (2013-present).
星野みちる (Hoshino Michiru)
https://www.youtube.com/watch?v=qRTCUxjPmg8She used to be in AKB (I don't know for how long), most of her good solo stuff is produced by Microstar. Cute girl. And she even did a cover of Sinku Kiss by Apogee & Perigee which fucking surprised me.
Sinku Kiss (original):
https://www.youtube.com/watch?v=garOuDe5JiwBonjour Suzuki
https://www.youtube.com/watch?v=D4GwurrOQQ4It's cute, the first thing I heard by them. I listened to the album of theirs which came out recently and this is probably the best song on it. Vocals remind me of cotton pantie's.
https://www.youtube.com/watch?v=e-f5d8dTm2YTentenko
https://www.youtube.com/watch?v=YIkd3H4tEf4Used to be in BiS who are complete shit. This song isn't complete shit but it is basically a third-rate Especia, but I love Especia so it's all good in the end.
plumsonic!
https://www.youtube.com/watch?v=ZjYTfW8FXjEOne of the better modern technopop groups in my opinion. The last album of theirs I've listened to is from 2011 but I think they've released a few more since then, I just haven't been keeping up properly. Disgusting teeth.
Hitomitoi
https://www.youtube.com/watch?v=Jv_uVyb95zMTokyo City pop inspired electropop. She's alright, more of a singles artist, but she has released a lot of albums within the past few years.