any similar?

No twink (at least normal, muscular, or same sized partners) and take no sh*t omegas:

https://www.mangago.zone/read-manga/abarenbo_honey/

https://www.mangago.zone/read-manga/omae_no_koi_wa_ore_no_mono/

https://www.mangago.zone/read-manga/megumi_and_tsugumi/

https://www.mangago.zone/read-manga/katsubou_animajemera/

https://www.mangago.zone/read-manga/love_shuttle/

https://www.mangago.zone/read-manga/unromantic/

https://www.mangago.zone/read-manga/kimi_to_tsugai_ni_naru_shouhou/

https://www.mangago.zone/read-manga/haga_kun_wa_kamaretai/

https://www.mangago.zone/read-manga/the_omega_takes_a_husband/

Not omegaverse but what this reminded me of until the latest two chapters:
https://www.mangago.zone/read-manga/dekoboko_sugar_days/

Not omegaverse but babies do happen:
https://www.mangago.zone/read-manga/the_sacred_serpent_s_seduction/

Not omegaverse but the dark tone this series is going for so far, if you wanted:

https://www.mangago.zone/read-manga/warehouse/

https://www.mangago.zone/read-manga/roses_and_champagne/

https://www.mangago.zone/read-manga/trace_of_witch/

Twink but both so co-dependent- https://www.mangago.zone/read-manga/sweet_heart_trigger/