I hope you don't mind manga!
All of furuya nagisa's mangas are shounen ai https://www.mangago.me/home/mangalist/4223403/
https://www.mangago.me/read-manga/midori_no_kaze_ni_kimi_wo_hiraku_naono_holics/
https://www.mangago.me/read-manga/lovers_on_the_last_train/
https://www.mangago.me/read-manga/living_with_him/
https://www.mangago.me/read-manga/blue_blue_blue/
https://www.mangago.me/read-manga/give_me_a_hug_mr_frog/
https://www.mangago.me/read-manga/garden_in_the_closet/
Manhwa
https://www.mangago.me/read-manga/the_nameless_flower/
Death is the only way for the Villainess, it's straight but it's good, no smut
My absolute favorite fluffy shounen ais of all time are robber x lover and merry marbling. They have the same author and are so well done! They also have really likable side couples. I highly recommend :D
I'm in need of a shounen ai yaoi/yuri (or straight idc) and green flag please I've read too much smut