Ask HN: Alternative to Twilio STUN/TURN?

Does anyone know an alternative to Twilio's hosted service for STUN/TURN/ICE servers (https://www.twilio.com/stun-turn)? I want a solution that can easily scale to 10+ peers and I've read that STUN/TURN/ICE wont work, you need an SFU/MCU based solution.

Also, are there any other issues with WebRTC that I can anticipate running into in production? Are there solutions to these other problems?

For context, I'm thinking of adding custom voice chat + data channels to my in-browser game.

Thanks in advance!