
https://www.mangago.zone/read-manga/kakumei_no/
https://www.mangago.zone/read-manga/exclusive_no_love_zone/
https://www.mangago.zone/read-manga/sensei_no_sensei/
this are unfortunately all i can think of. very rare to see alpha x beta sadly :')

Actually, I've seen comments from raws from koreans that uke of 'My Master' is most likely to turn omega. Well, I can recommend "Can't Help It" but it's not a serious manhwa and only short but you can read it for fun, I guess. It's dumb x dumber. There's also "Honey Trouble" but seme is toxic and in the last episode of season 1, uke is still beta but the cliffhanger is seme called someone for pills that he can use to turn uke an omega.

https://www.mangago.zone/read-manga/will_the_roasted_beans_sprout/
This is a love triangle which is not everyone's cup of tea. So it's both Alpha x Beta and Omega x Beta. With the ML beta being the bottom in both.

https://www.mangago.zone/recommend-manga/that_moment_then/
Shit ending, and the beta does have a smell according to the Alpha. But his still a beta

Have you read this one?
https://www.mangago.zone/read-manga/kashikomarimashita_destiny/
The second pairing is alpha x beta. Their story is my all-time favorite omegaverse story. (Betas can get pregnant in this one.)

I remember coming across it, if I remember correctly the alpha x beta is the second couple and I didn’t want to look for it or sit through typical alpha x omega plot if i just see them in the bg and get like 3 chapters dedicated to them. also the beta’s being able to get pregnant kind of defeats the purpose of a beta for me </3, thank you sm for the recc tho i appreciate ^^

The second pairing actually encompasses the majority of the manga. Their story starts in volume 2 if you ever decide to read it. I cannot recommend it enough. The second pairing is truly the best omegaverse couple I have seen in manga thus far.
Also throwing this out there for anyone who's interested in written omegaverse, JD Riley on ao3 has some of my favorite omegaverse stories. They have a "Victorian ABO" series that I love! All sorts of pairings and the male betas in their universe cannot get pregnant.
https://archiveofourown.org/series/695802
i cant find any that hold my attention span, either boring as hell or they decide not to commit to the beta part cuz they want their cute and kinky pregnancy scenes so they turn the beta into an omega :))) LOOKING AT YOU BUTLER, IVE NEVER BEEN MORE BETRAYED!!!
anyway if you have any hidden alpha x beta gems send them my way pls
edit:
so i did my own reasearch and i’m keeping this up for other alpha x beta fans to interact with.
i found this list which helped narrow things down!
https://www.mangago.zone/home/mangalist/1105815/?filter=&page=1
I will be starting with My Master, I originally avoided it bc i absolutely hate the childhood friends to lovers trope, mainly bc it was ruined for me but i’m going to give it a chance since the art style is right up my ally and the dynamic seems tolerable.