Looking for Game show buzzer system

[Aracore]

Sorry if this is in the wrong area, but I need to pick your brains.

I am looking for a set of buzzers that can be used while streaming on steitch or Xsplt which can add a set of game show buzzers for my stream guests, which when the first is pressed will lock all others out from buzzing in. It would have to obviously be something that each person could download cheaply to be able to add into the game.

I don;t know if such a thing exists or not, and even then if it would also work over Xsplit. We would be using Discord chat for the microphones and avatars so maybe something linked ionto that?

Anyway. as you can tell I only have half an idea of what i am talking about here so any help you guys can offer would be greatly appriciated.