Kurui Naku No Wa Boku No Ban
Omegaverse in a corporate setting. Takaba is an alpha who hates omegas due to experiences in his childhood. He transferred to a new company and is surprised to have an omega (Karasuma) as his boss. He sees Karasuma in action first hand having a threesome with other company executives. His finds out that Karasuma uses his omega trait to do sexual favors to rise to the top of the company and do transaction deals even though he hates alphas. For some reason however, Takaba comes to respect him and realizes his feelings for him. Karasuma, having received a new kind of experience from an alpha, he has come to appreciate Takaba and become a pair with him. 3 stars because the sexual favors is too mature and not my thing x__x but I've come to appreciate the story
Kedamono Arashi: Hug Me Baby!
Part 3 of Kedamono Arashi where they live as a family woth a cute child
Unmei no Tsugai ga Omae da Nante
Omegaverse love story between coworkers who have been enemies since middle school. Shisikura suddenly goes into heat after a company dinner and ends up having sex with Kotani. He later finds out that he is a top notch pair for him.
Kashikomarimashita, Destiny
Stories about rich people and their butlers. 1st couple: Alpha (Jirou) x Omega (Aoi). Two people who have known each other since they were children. Immediately felt the "soul bond" but refused to accept their destiny. Aoi, after his parents died, became a commoner and started working as a butler in Jirou's household. With the support of his ever caring butler Miyauchi, he was able to learn. Despite Jirou's hatred they end up getting tied with one another since they can no longer deny their fate. They ended up getting married and having twins. 2nd couple: better and longer story about Miyauchi (Aoi's butler, Beta) and Kudou (Jirou's butler, Alpha). Started off as a hate relationship. Both of them had a horrible past that involved sexual abuse (and child abuse for Miyauchi) so they formed hatred for Alphas and Betas. They started off when Miyauchi had to relieve Kudou when his heat got triggered because of Aoi's heat. Kudou slowly delevoped feelings for Miyauchi but since Miyauchi had a dreadful past it took a while for him to open himself up to Kudou. They ended up getting married and having a child despite of Miyauchi being mostly infertile.
Shima-chan Chi no Tsugai Jijou
Enemies to lovers. Delinquents from rival schools. Their child asked how they met and the manga is the backstory
Omae no Koi wa Ore no Mono