https://www.mangago.me/read-manga/quo_vadis_domine/
https://www.mangago.me/read-manga/sensei_no_sensei/
https://www.mangago.me/read-manga/hana_furu_unmei/
https://www.mangago.me/read-manga/kimi_wa_jun_ai_ni_fusawashii/
https://www.mangago.me/read-manga/omega_megaera/
https://www.mangago.me/read-manga/ai_da_koi_dano_shouhosen/
https://www.mangago.me/read-manga/boku_de_mitashite/
https://www.mangago.me/read-manga/the_boundary_of_fragrance/
The mc is a dominant omega in desesperate need of a job, accepts a money rich offer of a chairwoman who tell hims to work as his grandson (a dominant alpha with a pheromone condition) secretary, and anonymously sleep with him as a form of pheronome teraphy.
https://www.mangago.me/read-manga/diamond_dust_yaoi/
Mc is a beta ex artist, who starts working in a art gallery, and he will meet the gallery director who is a golden alpha that treats him coldy, but for some reason he starts growing a crush on the director
https://www.mangago.me/read-manga/feel_my_benefit/
Mc is an omega who wants to have his first time with someone he loves. Ml is an alpha player who doesnt believe in love. They meet at a university party and end that night together
https://www.mangago.me/read-manga/a_taste_that_i_know/
Mc is an omega faking to be a beta to work as a cruise staff, not knowing he got into a darker place than he though. In the cruise he will see and smile a handsome man, without knowing its the corrupted vicepresident who will catch his attention
https://www.mangago.me/read-manga/perfect_error/
Mc is poor omega working as a prostitute to survive. One night he catches a popular with good public image ceo beating someone up. He will film it and use that opportunity to blackmail him
https://www.mangago.me/read-manga/dash_team_hazama/
Mc is an omega and a retired professional swimmer, that works in a sports agency. One day he gets the opportunity to try recruit the worlds best swimmer, an alpha who was also his past teammate in the same swimming center. And after many years they will reunite again
https://www.mangago.me/read-manga/mangjong_yaoi/
Mc is a detective who finds a injured man on the street with no memory and identity. He decides to take care of him until his memory comes back, not knowing that man is part of a chaebol family with a rich company, and also a corrupted mafia
Omegaverse with black hair bottoms ?