Any fluffy, heartwarming but no romance manhua or manga any genre is ok if bl then romance is ok too
https://www.mangago.me/read-manga/yotsubato/
U probably know it but u should give it a try if u didn't
Shounen Ai: Fluffville
https://www.mangago.me/home/mangalist/2536358/
Yaoi: Fluffville
https://www.mangago.me/home/mangalist/2526492/
For non romance:
children fluff
https://www.mangago.me/home/mangalist/1408361/
children fluff pt 2
https://www.mangago.me/home/mangalist/1976292/
friendship / other type of fluff
https://www.mangago.me/home/mangalist/1751016/

Any manhwa were there is like plot good and not surrounded around the couples only
https://www.mangago.me/read-manga/kin_no_hitsuji/
Don't miss out on the side stories