Yaoi:
Owaranai by Ogawa Chise
Mujihi series
Dakaretai otoko ichi odosarete imasu
Koitomo
Shoujo:
Kaikan phrase
Black Bird
Kamisama hajime mashita
Honey x honey drop
Absolute boyfriend
Shounen:
Naruto
Death note
Laughing under the clouds
Shokugeki no souma
The amount of Mangas I've read are still very few and these ones aren't the best but hope you'll find something.
Fantasy
http://www.mangago.me/read-manga/annarasumanara/ (really recommend this one)
http://www.mangago.me/read-manga/kanata_kara/ (also romance/shoujo)
Drama
http://www.mangago.me/read-manga/koe_no_katachi/ nghh
http://www.mangago.me/read-manga/winter_woods/ (also romance and fantasy)
http://www.mangago.me/read-manga/oyasumi_punpun/ this one's tough.
Romance
http://www.mangago.me/read-manga/can_t_see_can_t_hear_but_love/
http://www.mangago.me/read-manga/papillon/
Comedy
http://www.mangago.me/read-manga/gekkan_shoujo_nozaki_kun/
http://www.mangago.me/read-manga/koi_suru_shirokuma/
http://www.mangago.me/read-manga/adventures_of_god/
http://www.mangago.me/read-manga/19_days/
Horror
http://www.mangago.me/read-manga/tales_of_the_unusual/
http://www.mangago.me/read-manga/parasite/ (this one is more of a shounen/seinen)
I enjoy most of Junji Itou's works too. If you haven't, go check him up sometime.(๑•ㅂ•)و✧
Yaoi
This genre is a bit difficult. Mine always changes shortly.
http://www.mangago.me/read-manga/owaranai_fukou_ni_tsuite_no_hanashi/
http://www.mangago.me/read-manga/mimitabu_no_riyuu/
http://www.mangago.me/read-manga/never_understand/ alright it's shonen ai but still
http://www.mangago.me/read-manga/akiyama_kun/
http://www.mangago.me/read-manga/kokoro_o_korosu_houhou/ the angst is killing me
http://www.mangago.me/read-manga/shiro_no_koro/
http://www.mangago.me/read-manga/yamada_to_shounen/
I feel like I've read so many yaoi but I can only remember those titles for now
Can anyone recommend me any of your favorite mangas?