Stream Deck

A Stream Deck is a small box of buttons, each with its own screen showing whatever icon you assign it. Press one and it runs an action: switch scenes in OBS, mute a microphone, play a sound, trigger an alert, or run several of those in sequence.

Live production leaves you no spare hands and no time to hunt through menus while talking. That is the whole case for it. Elgato sells sizes from six keys up to thirty-two, plus a phone app version if you want to test the idea before buying hardware.