I like drama with complex relationship/feeling between people and I prefer them having distinctive personality or character development. Though sometimes I like fluffy BL too. I don't know what you prefer, already checking your watchlist, and these are my favorites that's not yet on your watchlist:
180 Degree Longitude Passes Through Us bad ending
A Tale of Thousand Stars
Be My Favorite
Dark Blue Kiss red flag ml (imo)
I Told Sunset about You + I Promised You the Moon + Last Twilight in Phuket red flag ml
KinnPorsche red flag ml
Last Twilight
Love in the Moonlight
MuTeLuv: Love Me if You Swear
My Stand-In red flag ml
The Eclipse grey flag ml (he's kinda brainwashed I think)
This Love Doesn't Have Long Beans grey flag ml
To Sir, with Love grey flag ml
Triage
Need to mention that I care a lot about the leads' visuals (according to my preference), so there's a lot of great BL I skip because I don't like one of the lead's (or more) visual like with Top Form and Nour which should be really good (plot wise). And I kinda dislike drama with more than 2 main couple. So I missed quite a lot.
Only list Thai BLs above, this is my favorite list for all countries: https://kisskh.at/list/389Aa9V4