Love Shuttle - https://www.mangago.zone/read-manga/love_shuttle/ (finished this one just a week ago and loveeee it. ML is such a green flag. The side story (second couple) isn’t entirely wholesome but the main couple and main story definitely is especially once the MC comes to terms with the fact that the has feelings for the ML)
Define the Relationship - https://www.mangago.zone/read-manga/define_the_relationship/ (The back and forth feelings can be a bit annoying, but they are such a wholesome couple)
Unromantic - https://www.mangago.zone/read-manga/unromantic/ (becomes wholesome. ML is a green flag)
Wolves Behind Bars - https://www.mangago.zone/read-manga/the_time_between_dog_and_wolf/ (I found this one surprisingly wholesome?)
Romance but not Romantic - https://www.mangago.zone/read-manga/romance_but_not_romantic/ (still ongoing)
How to Snag an Alpha - https://www.mangago.zone/read-manga/how_to_chase_an_alpha/
Basically, all the MLs/Semes are total green flags in these as far as I can remember. One of them is still ongoing but I felt it was worthy of being added. The other one is “ongoing” purely due to side stories, but main story is complete.

Rec me completed wholesome omegaverse bl!!!