Version 1 of the list :
https://www.mangago.me/home/mangalist/720481/
I can read these mangas many times! I rate them >9.5/10 based on my own preferences, so there will be lots of non-mainstream BL
Genres: NO PWP, no doujinshi
Length: <100 chapters or 3 vols
Search by tags: http://www.mangago.me/home/people/12706/manga/1/
If you like this list, please click "RECOMMEND". Thank you XD
2nd list: http://www.mangago.me/home/mangalist/655038/
(IF 1ST LIST IS FULL, I'LL MOVE OLDER ONES TO MY 2ND LIST)
Long series: http://www.mangago.me/home/mangalist/645867/
This list is for characters who have obtained supernatural abilities that help them lead better lives. They may be regressors or reincarnators but within a modern-world setting.
Edit: I have a separate list for the entertainment genre, but I've also included those who have been 'reincarnated' or granted cheat-like abilities here.