[andrewf]

You might like WebRTC Media, it's SRTP once all the session establishment stuff is done. (WebRTC Data is SCTP over DTLS)

[stackedinserter]

Are there production-ready solutions for WebRTC streaming to multiple people (not p2p)?

[stemcc]

Sure, there are multiple production-grade SFUs. Janus, Mediasoup, etc.