VerneMQ [0] could be interesting for you, they claim that: > VerneMQ is a high-performance, distributed MQTT broker. It scales horizontally and vertically on c

VerneMQ [0] could be interesting for you, they claim that: > VerneMQ is a high-performance, distributed MQTT broker. It scales horizontally and vertically on commodity hardware to support a high number of concurrent publishers and consumers while maintaining low latency and fault tolerance. I'm not sure about their licensing at the moment [1], to me it's a bit confusing. [0] https://vernemq.com/ https://vernemq.com/ [1] https://vernemq.com/blog/2019/11/26/vernemq-end-user-license-agreement.html https://vernemq.com/blog/2019/11/26/vernemq-end-user-license...