well.. for starter you can check out my list. My list is still pretty decent though. There are a lot of other people list that has more manga in it.. As for now, I only include the best manga that I really like in my list. Hope it helps! (￣∇￣")
http://www.mangago.me/home/mangalist/404975/
We almost have identical mangas in our list. By the way, I suggest you download MangaToon and WebComics app. You can find Phoenix Nirvana at WebComics. Also try No Doubt In Us, I think you will like it. It's in MangaToon.
How many chapters of No double in Us is in MangaToon? I only have Webcomics and there're currently 121 chapters.
MangaToon is up to 130 for No Doubt in Us. u_u
Where can I find more manga like this? Same concept and all