im still looking for that omega x omega manga that I've read years ago, it was so interest...

https://www.mangago.zone/read-manga/omega_bite/ ?

https://www.mangago.zone/read-manga/takatora_and_the_omegas/

https://www.mangago.zone/read-manga/seisansei_no_takai_futari_no_seisansei_no_hikui_seikatsu_hypnosis_mic_dj/

The second one is interesting, but i remember it not being one shot tho, its also angst FORGOT THE ENTIRE PLOT DANG

This? https://www.mangago.zone/read-manga/katenkouru_ni_wa_mada_hayai/
And, check the warnings before reading!

Also, try this tag for more: https://www.mangago.zone/tag/Omega%20top/