Gay Yaoi Alpha and Omega

Are you talking about love shuttle http://www.mangago.zone/read-manga/love_shuttle/
Or ones like it

(Nurse x Doctor)
http://www.mangago.zone/read-manga/kedamono_arashi/

(Childhood friend becomes a butler x master)
http://www.mangago.zone/read-manga/kashikomarimashita_destiny/

(Not co-workers but it’s very cute)
http://www.mangago.zone/read-manga/kashikomarimashita_destiny/

(Classmates)
http://www.mangago.zone/read-manga/megumi_and_tsugumi/

(Childhood friends-> got into a fight -> Had to Work together)
http://www.mangago.zone/read-manga/yagi_to_ookami_no_hatsujou_jijou/

Yes,thank you!