Paradigm Shift
a beta is the lead in a lab and is given another worker that is a beta as well. a mistake is made which causes the first beta to become an omega and it is revealed tht the other beta is actually an alpha. they go their separate ways. the new omega finds out tht the alpha had met him many years previously and that from then on believed tht the new omega was his gated pair, even tho he was a beta at the time. they fall in love when the meet again and end up having a child after several years.
Egoism Heat
very cute. omega meets an alpha on the street and asks him to pretend to be his lover to get out of an arranged marriage. they get used to each other and help each other during heat/rut. they even end up having the cutest kid.
Unmei no Tsugai ga Omae da Nante
clara rec
Fatal Scents
Kiraide Isasete
an omega with a child becomes a janitor at a beta school to avoid alphas bc he hates them, only to come into contact with one that is pretending to be a beta bc he also hates being around other alphas due to the dehumanizing omegas. he sees the omega and decides that they are life mates and tries to prove to him that not all alphas are like the ones like the hurt the omega before.
Kyou Kara Omega ni Narimashita
former beta goes into heat and his best friend who is an alpha takes care of them. they move in together with the prospect of being mates, but their hidden feelings for one another complicate things and delays them becoming mates.
Megumi and Tsugumi
a delinquent omega who hates alphas and doesn't use suppressants as he goes through his heat by his sheer willpower is confronted by an elite alpha to fight. he is in heat and the alpha tries to help him by giving him suppressants, though he refuses. they end up locked in a warehouse and endure the omegas heat together, starting their very interesting relationship.
Kekkon Shite Kudasai!