List of manga/hua/hwa with less than 20 chapters
consist of all kind of bl genre.
Ps: Im not good on giving review so yeah? Enjoy reading!
Pps: the stories are all great in fact some of it can be considered as a masterpiece (in my opinion of course)
Ppps: dunno what happened but my reading history got reset so there might be a duplication in my other lists.
Here's my another list of short bl:
https://www.mangago.me/home/mangalist/1243770/https://www.mangago.me/home/mangalist/3677457/ 
