Love triangle between two boys and girl in which the boys stay together. Already read ao no flag
http://www.mangago.me/read-manga/natura_turaly/ (chapter 1) it's part of this anthology of BL form a girl character's perspective, but I think this is the most loce-triangle-y. Harada's chapter is also a bit love triangle-y (chapter 5)
http://www.mangago.me/read-manga/joshi_bl/
There's also these these two which aren't completed but are really good, tho it looks like he'll end up with the girl on the 1st one, too early to tell on the second
http://www.mangago.me/read-manga/that_summer_kim_hyun/
http://www.mangago.me/read-manga/10th_you_and_i_fell_in_love_with_the_same_person/
Real talk. Why manwhas like painter of the night and killing stalking are so goddamn famous? I’m not saying they’re bad but why are those so popular?
I actually hate Killing Stalking and I'm sure most fujoshis don't like it too. But it is intriguing honestly. Like wondering what's going to happen. I dropped it like 15 chapters in honestly. As for Painter of the night, the art is awesome, the seme doesn't really stab the uke much (not at all) and he is hot as fuck so it's good
A love triangle between two guys and a girl in which the two guys stay together?
Hehe definitely this u will love it
http://www.mangago.me/read-manga/faded_first_love/
Hi! I’m writing a BDSM fanfic. Any recommendations of accurate portrayal of BDSM in manga or webtoons? Doesn’t matter if it’s BL, GL or straight.
Hey there! I followed this questions before and it was really education and informative. You can also contact/message the person if you have more questions :)
http://www.mangago.me/home/mangatopic/5929808/
A user asked the op about which manga is closest to realistic and this is her answer:
I can't off the top of my head think of a REALISTIC one per se, but I'm currently reading this one called "Private Lessons". It's not perfect by any means and especially at the beginning there's some sketchiness in the dynamic, but out of the ones I've read recently it's on the more realistic end of the spectrum :)

Time traveling related BL?
http://www.mangago.me/read-manga/not_equal/
http://www.mangago.me/read-manga/this_ending/
http://www.mangago.me/read-manga/samurai_lover/