Maybe you've read these
Skip Beat!
Library Wars : Love & War
Kusumi-kun, Kuuki Yometemasu ka?
Hana Kimi
Shiawase Kissa Sanchoume
Special A
Gakuen Alice
Seiyuu Ka!
Ouran Koukou Host Club
Kimi Ni Todoke
try these!
http://www.mangago.zone/read-manga/emma/
http://www.mangago.zone/read-manga/thirsty_thirty/
http://www.mangago.zone/read-manga/how_about_having_dinner_together/
i hope you like them (๑•ㅂ•)و✧
oml i just realized that you specifically wanted mangas !! the last two are manhwas, but the first one is a manga ! sorry haha ╥﹏╥
I feel like ive been reading a lot of webtoons lately and I wanna read some LONG romance mangas! Any recommendations? (Mangas like Hana To Akuma, or Black Bird, or Dengeki Daisy!) Yknow those kind of mangas