Totsugimasen Kara!
Complete | sunako | 2016 released
Nice read. Omegas went to Alpha house to do houseworks so that one can be selected as perfect wife.
Zenbu, Ω na Ore no Sei.
Complete | Inainaka | 2017 released
Nice story. Uke is an omega and at an alpha-only school. Seme who is also his rival finds out him being omega and blackmail him into sex. Which turns into love.
Restless Webtoon
Complete | Hoben | 2000 released
A little short, but sweet and sexy. Very nice art.
A Tough Alpha Wants to Be Loved -Cornered by a Young Omega-
Complete | FUKUHARA Hagi | 2000 released
Koishite Baby (MIYAKO Mimeko)
Complete | MIYAKO Mimeko | 2019 released
Cute story with a big stripper omega and a small childhood friend alpha.
In the Cage
Complete | Satou Sanayuki | 2018 released
Somehow creepy how obsessed the alpha is about the omega.
Shingeki no Kyojin dj - Hangyaku Unmei