Nimbus is an open source, battle tested, .NET messaging framework that provides an abstraction layer over various messaging transports. Write your messaging code once, and run it on Azure Service Bus, Redis, AMQP (ActiveMQ Artemis), SQL Server, Postgres, or any other supported transport without changing your application code.
You can find out everything you need to know over on the Nimbus website.
I also provide support and training for your Nimbus projects. So please get in touch.