I wanted to recommend something you haven't read yet, so I checked your reading list and it was long, haha but you need to read these:
Nakittsura ni Hug
Cupid ni Rakurai
Tamaranai no wa Koi na no ka?
Our Sunny Days
A First of Summers
A Lovely Meal
Cherry Magic! Thirty Years of Virginity Can Make You a Wizard?!
Anyway, they're my favorite fluff stories. Some have angst, but it's the kind of misunderstanding that's normal in slice-of-life stories..
Yaoi: Fluffville
https://www.mangago.me/home/mangalist/2526492/
Happy reading dear <33

Fluffy nontoxic BLs? With no angst preferably? (Ideally none, but minimal is fine)