I usually don't like omegaverse because how it makes every character a horny animal and everything is around the kink side of (basically) trans people (and omega guy feels like a girl with a dick) but this one is really nice. Uke is still has the power/qualities of a guy, and the differences in power is not so prominent between "secondary genders". It is NOT a world of "every omega guy is being worthless weak trash being raped and only able to survive if has an alpha strong as a tiger."
Shima-chan Chi no Tsugai Jijou