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/
These are the AMAZING (would recommend to read all of these imo) mangas/manhwas which I will trouble have forgetting the plot of even several years later.
Some with great stories (and are popular), some highly underrated hidden treasures here. They come from all sorts of genre.
Would encourage myself to reread some too.