Our sunny days
https://www.mangago.zone/tag/single+dad/
https://www.mangago.zone/read-manga/itoshii_hito_saku_minori/
https://www.mangago.zone/read-manga/tabun_korekara_ai_no_hibi/
https://www.mangago.zone/read-manga/work_in/ Second couple in this one
https://www.mangago.zone/read-manga/sorenari_ni_shinken_nandesu/
https://www.mangago.zone/read-manga/ookami_papa_wa_hitsuji_tsura_shite_yatte_kuru/
https://www.mangago.zone/read-manga/shounen_houkokusho/
https://www.mangago.zone/read-manga/oh_my_hero/
I have a list https://www.mangago.zone/home/mangalist/2462576/
The doctors are out (webtoon)
Bls with single dads? No omegaverse