Is there any good shoujo manga that could be interesting? About highschoolers or middleschoolers maybe

You should read "Daily Lolita"
its going to be out soon!
And whats cool about that manga is;
the mangaka will be singing for each chapters!
If your interested in it, you should check out the first MV (music video sing by the mangaka)
You should search for
"Eternal . Aoi Sora MV
by Sakura Fujio"
It will be release on January 11 2016!!!
Available on youtube!!

Shoujo about high school/middle school...

Cardcaptor Sakura
Tokyo Mew Mew