Honestly I'd get wired controllers or a wireless 360 adapter(doesn't use bluetooth). I've been through 5 different bt adapters on my raspberry pi and they all s

Honestly I'd get wired controllers or a wireless 360 adapter(doesn't use bluetooth). I've been through 5 different bt adapters on my raspberry pi and they all start crapping out after 3-4 controllers, bt just isn't fast enough. The 360 controllers can do 4 flawlessly and start slowing down after that but they're also way easier to setup and use than bt imo. Wired with a hub would be the best option if you don't mind the wires. 10 input devices is rough on any system imo.