Koishite kissshite kanjaitai
"It’s not easy to find partners for omegas and alphas. Omega Akihiro’s family knows this, and so they also know how lucky they are to be able to arrange a marriage for him with Reiya. He’s an alpha, he lives nearby, he’s the same age as Akihiro, and he’s apparently a wonderful person. Although their arrangement is initially one that neither of the boys are interested in, feelings change once they see other sides of each other."
Double Fake
"Omega detective Jitsuya Idou and his alpha partner, elite officer Kazuhiro Kitakouji, share a strictly business pairing to manage Jitsuya’s omega constitution and gain insider information. Despite their pragmatic arrangement, their bodies betray them, leading to intense physical encounters they can’t ignore. As they navigate this complicated relationship, they face a dangerous case involving an illegal drug targeting omegas, testing their partnership in unexpected ways."
Papa x Papa - α To Ω De Sorezore Yattemasu
"Blue-collar omega Kosuke lives with his alpha author/homemaker husband, Haruka, and their two children, Marin and Yosuke. Between chores, child-rearing, and being an omega, Kosuke has his work cut out for him. But despite the difficulties and craziness of everyday life, each day is filled with joy, all thanks to Haruka’s overflowing love…!" A lovingly crafted Omegaverse about married life.
Shima-chan Chi no Tsugai Jijou
"Shima-chan has two fathers, happy go lucky Akane (α) who likes to do things his own way and tender Aoi (Ω) who is a man of reason. Presently, they’re happy parents who love their daughter Shima-chan, but things were not smooth in the past."
Paradigm Shift
"Hibiya is a Beta and works as a researcher. One day a new researcher named Yamagi joins Hibiya's research team because of his admiration for him. Just who is Yamagi and why does he claim to know Hibiya from the past?"
Boku No High Spec Kareshi-sama
"Yokomichi, an omega, always gets dumped by his alpha boyfriends when they find out that he wants to be the seme. But Yokomichi never stays down for long, and his latest target is the president of the company he works at... Who is also, of course, an alpha." It's an alright read.
Unromantic
"An unparalleled beautiful dominant super rich omega suddenly came into my very ordinary life! “30 minutes. If you manage not to beg within that time, then I’ll send you home.”And just like that, he’s ignoring the fact that I am an alpha? I really hate people like him… so, so much! I hate him, but then…"
Love Shuttle
"There’s a late bloomer, and then there’s a *late bloomer.* Doyun may be half Omega, but he certainly doesn’t look it: he’s tall, chiseled... But the worst of it all is that he’s a full-grown adult male who has yet to go into heat. He doesn’t see the problem, and everyone assumes he’s an Alpha, anyway." MC slightly iffy, but a solid Omegaverse all things considered.
Kyou Kara Omega ni Narimashita