You can look up 2 opinions in this thread:
https://www.speedrun.com/streaming_recording_equipment/thread/ccj1i

Sorry for taking the lazy approach and just linking a thread, since it is quite regularly a topic:
https://www.speedrun.com/streaming_recording_equipment/thread/sfay4
I hope one of the mentioned timers works well for you :)

Need help setting up your stream, or recording your runs? This is the place to ask.

Streaming / Recording / Equipment

Linux Timer.

Linux Speedrun Timer.

RaggedDan