have you ever read sekaiichi hatsukoi? its by the same author as junjou romantica
i'd also recommend:
ANYTHING by itsuki kaname sensei (she's my favorite!)
http://www.mangago.me/read-manga/sorenari_ni_shinken_nandesu/
http://www.mangago.me/read-manga/yume_musubi_koi_musubi/
-> spinoff: http://www.mangago.me/read-manga/himegoto_asobi/
http://www.mangago.me/read-manga/hidoku_shinaide/
(and other works by that author)
http://www.mangago.me/read-manga/rutta_to_kodama/
http://www.mangago.me/read-manga/puchitto_hajiketa/
http://www.mangago.me/read-manga/datte_maou_sama_wa_kare_ga_kirai/
http://www.mangago.me/read-manga/honto_yajuu/
http://www.mangago.me/read-manga/usagi_otoko_tora_otoko/
http://www.mangago.me/read-manga/sono_te_no_netsu_wo_kasanete/
http://www.mangago.me/read-manga/junjou/
http://www.mangago.me/read-manga/doushitemo_furetakunai/
-> spinoff: http://www.mangago.me/read-manga/soredemo_yasashii_koi_o_suru/
as for shoujo, if you like comedy, you'll definitely like
http://www.mangago.me/read-manga/lovely_complex/
it's hilarious and i love all of the characters
I'm wanting some suggestions, I am looking something along the lines of Skip beat and Junjou Romantica.