https://www.mangago.me/read-manga/reincarnated_into_demon_king_evelogia_s_world/
https://www.mangago.me/read-manga/isekai_de_toshishita_kishi_ni_sewa_wo_yakareteimasu/
https://www.mangago.me/read-manga/kocchi_muite_glare/
https://www.mangago.me/read-manga/yuusha_to_maou_no_love_one_room/
https://www.mangago.me/read-manga/itoshi_no_kemukujara/
https://www.mangago.me/read-manga/kishi_sama_ikuseichuu_to_doukyo_shimasu/
How to Escape the Clutches of an Obsessive Top (manhwa; guideverse)
https://www.mangago.me/read-manga/how_to_escape_the_clutches_of_an_obsessive_top/
Ni Jiu (manhua; omega isekaied into a 'normal' world with no a/b/o)
https://www.mangago.me/read-manga/ni_jiu/
You can also try browsing this list: https://www.reddit.com/r/OtomeIsekai/comments/162lir0/otome_isekai_bl_masterlist/
i feel like I barely see this trope in yaoi lol, the only one i can think of rn is titan’s bride (also svsss but that’s a novel so..)