If you’re using OBS Studio for your streaming needs, obs-websocket might come in handy: ot’s a WebSocket Server that allows you to remotely control OBS.
Once installed and activated you can then use something like obs-tablet-remote as a GUI for it.
obs-websocket WebSockets API for OBS Studio →
OBS Tablet Remote →
Via Patrick
💡 If you’re using Streamlabs OBS, then you already have a remote control built-in.