Kamisama Nanka Shinjinai Bokura no Eden
Two kids go through a heat together (in a world that is not omegaverse and they are quite confused)
Feel My Benefit
Alpha seems like kind of a dick but at least the omega doesn't seem head over heels for him yet. Hoping alpha falls first (it seems likely). Don't love a love triangle though
Yurameku Aki no Koi Gokoro
wholesome, boys who were friends in high school (and in love with each other) meet again after 8 years
I Like Your Pheromones
Super cute. A beta turns into an omega late and develops an allergic reaction to alpha pheromones. Except for the alpha in his class who has stolen the hearts of all his crushes by being good at everything. This feisty little omega refuses to be outdone by the cool and top student alpha. Mostly a school drama with some omega elements
Everyone Stand Up! Boys Love Private High School