Koishite kissshite kanjaitai
Established healthy relationship, no conflict, just fluff and coming-of-age relationship development. I'm not usually a fan of established relationship things, but it was cute. Official on Renta, these aren't the officials. I've bought it all on Renta (chapter 6.5 here has no official translation that can be bought). Series info: https://www.mangaupdates.com/series/fweikhf/koishite-kiss-shite-kanjaitai 6/20/23
Non-Refundable Alpha
While this is an incredibly toxic and manipulative dynamic, it's heavily presented as a comedy so that makes the read tolerable. If it wasn't a comedy I definitely couldn't read it, the alpha had some serious issues. Summary: "Choi Jaewon, an omega who enjoyed a free and carefree student life with alphas like rabbits. After giving in to his father's insistence, he returned to Korea only to discover that what awaited him was.... Marrying his childhood friend, Yang Junhee? Unlike when they were kids, Junhee becomes Jaewon's ideal guy, which leads to Jaewon ending up arranging a wedding all of a sudden. Junhee mentions that he made a promise to Jaewon, but Jaewon doesn't remember any of that.... A romantic and sexual comedy between the naive Jaewon, who is obsessed with Junhee, and Junhee, who pretends to be a soft and tender lamb just for Jaewon." Not licensed in English. Complete at 7 chapters. Series info: https://www.mangaupdates.com/series/bi0fzh2/non-refundable-alpha 10/11/23
Muri Marriage