Does anyone know a poly bl where the relationship is kinda centered on the protagonist?

Yarisugi Party Night is the only one that comes to mind where everyone sort of does it with each other, but is mainly focused on the mc. However, if you want ones where it's multiple guys topping one dude then I can list those.

Yeah sure, I'm good with that

(Warning: I haven't read/finished some of these and some may contain dark themes)
Docchi ni Suru?
Paripi -Party ☆ People-
Profundis
Manager ni natte mo mondainai!
Yarichin ☆ Bitch Club
Ai o Ataeru Kemonotachi
Sensei wa Nekketsu ga Areba Juubunda!
Mob-kei Danshi no Yuuutsu
Oboreru Triangle
Pet Keiyaku
haikyuu dj - Hito wa Sore o Shitto to Yobu
Bokura To Usagi No Koi Wa Sensou
Non Zero Sum
Nuretoro3P
Koitomo Triangle
Aisaretagari No Gemini
(Let me know if you want more! Hope you find something you like!)