Anybody know any threesome bl manga where the relationship is kind of centred around one o...

This is the only one that comes to mind :/ (I tend to stay away from love triangles and threesomes, since they often don’t end with a 2p couple)
https://www.mangago.zone/read-manga/chika_chan_to/

Try 'Ai o Ataeru Kemonotachi' its surprisingly wholesome

This is exactly the kind of thing I was looking for!! Thanks so much (▰˘◡˘▰)