I know you said it's fine if it's toxic but....these ones are another level warning you beforehand
Ghost of Paradise
https://www.mangago.zone/read-manga/ghost_of_paradise/
The Tosa's Master
https://www.mangago.zone/read-manga/hardcore_bl_anthology_the_tosa_s_master/
In this one they aren't completely obsessed with each other but also at the same time kinda are, yk? Either ways it's a good read
Checkmate(TAN)
https://www.mangago.zone/read-manga/checkmate_1/
enjoy (｡•ᴗ-)✧
I thought that I would have a lot to recommend but it seems that most are just one person being obsessed ... Here are a few I found tho, in varying degrees (￣∇￣") but i also want some recs so i'll follow :3
https://www.mangago.zone/read-manga/mad_dog/
https://www.mangago.zone/read-manga/gochisousama_ga_kikoenai/ (maybe?)
https://www.mangago.zone/read-manga/nagahama_to_be_or_not_to_be/ (more lighthearted and sweet)
https://www.mangago.zone/read-manga/endless_after_school_honey/ (just pwp but they're most def obsesssed with eachother!)
Im looking for BL recommendations (list r good too) on manga where the characters r obsessed with each other. I don't mind if it's toxic as long as it's mutual ig
I'm just really want something where they r so obsessed w each other it can be considered codependent, kinda yandere so and so, where u r like "wow that's toxic but at least it's mutual"
Thank u(〜￣△￣)〜