Probably try out this one, as the focus isn’t necessarily on romantic relationships, but rather the story like in the previously mentioned manga.
http://www.mangago.me/read-manga/baraou_no_souretsu/
(Ps. It is a quite bit gay I would say, since the protagonist is a hermaphrodite and engages with men, if it counts)
Have you read http://www.mangago.me/read-manga/madk/
Hmm, what about http://www.mangago.me/read-manga/bi_no_isu/ ?it's edgy bc of the criminal element but not supernatural.
maybe you could like Tokyo Babylon and x/1999
http://www.mangago.me/read-manga/tokyo_babylon/
http://www.mangago.me/read-manga/x/ (warning it's on hiatus and it hurts)
I was wondering if anyone could find me anything with the same vibes as tokyo ghoul, ajin, death note kind of thing but kinda... gayer? like not primarily a BL but with a canon ship bc i'm craving some of that representation. thank you so much if you can find any...