No longer active

http://www.mangago.zone/read-manga/romantic_box/
http://www.mangago.zone/read-manga/like_a_tidal_wave_from_pheromone_shower/
http://www.mangago.zone/read-manga/restless/

Yuri (I don't read it as much, but these were nice): Love My Life, Club, Pulse, Bokura no Hentai, Blooming Sequence, It Would Be Great If You Didn't Exist, Lily Marble, Everyday Lily, The Love Doctor, Moonlight Garden, Living Will, Prism, Hana to Hoshi, Handsome Girl and Sheltered Girl, Umineko Sou days.

Yaoi (I read much more of those so here ya go. All of them are rather short and completed ones like you asked): Torokeru Tamago to Bed no Naka de, Doutei ni Ai Nante Sakebenai, Tatoeba Konna Koi no Hanashi, Oni to Tengoku, Last Omegaverse, Okusama wa Alpha, Sayonara Alpha, Hishakaishindo, Slow Starter, Tasogare Outfocus, Kimi wa natsu no naka, Kekkon Suru Kamoshirenai Otoko, Yakimochi wa Kitsuneiro, Satoshi and Kakeru, Kazoku ni Narouyo, 3 Ban Sen no Campanella, Sweet Trap, Restless, Konya Mister De, LULLU LALLA BLUES, Yasashii Anata, Midnight Rain, On Doorstep, Zattou Ni Asobu Sakana, Kiraide Isasete, Free Kisses, Suki ni Nacchau yo,Golden Sparkle, Renchin, 2-ban me no alpha. Restart wa Tadaima no Ato de, Umibe no Etranger, Bokura no Tsuzuki, Romantic Pornography, Hangout Crisis, J no Subete, He Is Beautiful, Portrait, Bukiyo Na Bokura No Sukima, Number Call, Koi wo Suru Tsumori wa Nakatta, Mikami to Sato wa Mada Yamashikunai, Oyasuminasai No Ato Wa, Kashikomarimashita Destiny, Rain Again, Hyperventilation, Omega wa Pink no Yume wo Miru, Mujaki na Wanko to Nekokaburi, Amaenbo Honey, Neon Sign Amber, Jackass, Sore Demo Suki Desu Kasahara-san, Kurui Naku No Wa Boku No Ban, Shucchou Host Nyu Boy, Nemuri Otoko to Koi Otoko, Ordinary Men, In August, Trace Of You, Ichika Bachika, Doushitemo Furetakunai, Anata wa Iyarashii Hito, Moon And Sun.

GO RUSH AND READ HEAVEN OFFICIAL'S BLESSING.