unromantic
kiraide isasete
re:birth
Shounen No Kyoukai
Kekkon Shite Kudasai!
This one is shounen ai, so not exactly spicy, but the omega gets treated with so much respect:
http://www.mangago.zone/read-manga/kasegimasen_kara/
Some other spicy ones I can think of with strong omegas:
http://www.mangago.zone/read-manga/love_shuttle/
http://www.mangago.zone/read-manga/megumi_and_tsugumi/
http://www.mangago.zone/read-manga/omae_no_koi_wa_ore_no_mono/
http://www.mangago.zone/read-manga/kashikomarimashita_destiny/
http://www.mangago.zone/read-manga/like_a_tidal_wave_from_pheromone_shower/
http://www.mangago.zone/read-manga/last_omegaverse/
http://www.mangago.zone/read-manga/2ban_me_no_alpha/
http://www.mangago.zone/read-manga/keeper_of_the_pearl/
http://www.mangago.zone/read-manga/koishite_kissshite_kanjaitai/
Just following one for these recommendations
I wanna read omegaverse, cause well its spicy but are there any where the omega is respected like wth... yall i just want a decent omegaverse ;-;