not sure if this fits ur bill but Love at First Fright is perfect for when you've just finished something heavy! Very silly friends to lovers with a cute premise. Just a lot of silly supernatrual situations and super short :)
https://www.mangago.me/read-manga/love_at_first_fright/
Make Me Bark is another one but its gen soooo stupid (i say this with love) and pretty well-known so maybe youve read it already?
https://www.mangago.me/read-manga/make_me_bark/

can you please recommend me some rom-com manhwa yaoi. please please. it can have fantasy, supernatural or something interesting. i just finished reading this heavy manhwa T^T