I love these type of twist still waiting for omegaXomega(╯°Д °)╯╧╧ or omega top

same it's too bad that those tropes are not very popular in manwha ╥﹏╥ i do have a few recommendations tho!
bottom alpha x omega top:
https://www.mangago.zone/read-manga/fxxking_teaching_team_hazama/
https://www.mangago.zone/read-manga/boku_no_high_spec_kareshi_sama/

omega x omega : https://www.mangago.zone/home/mangaphoto/seisansei_no_takai_futari_no_seisansei_no_hikui_seikatsu_hypnosis_mic_dj/
https://www.mangago.zone/read-manga/takatora_and_the_omegas/ (he was an alpha but turned into an omega)