How about http://www.mangago.zone/read-manga/super_lovers/
Though I guess you've read this one too...
this one is really good but its not really yaoi its just shonen ai, but its still good
http://www.mangago.zone/read-manga/komatta_toki_ni_wa_hoshi_ni_kike/
this one toooo!
http://www.mangago.zone/read-manga/kouun_no_rihatsushi/
Have you tried this one? http://www.mangago.zone/read-manga/hanaya_no_nikai_de/
I want to find yaoi manga about story that not to rush storyline. Just smooth, sweet or the couple just together because they prefect with each other and feel connection... (⌒▽⌒)