For DC RUM, you can define the Broker as a software service with the HTTP analyzer and analyze the corresponding web services. That gives you a great fault domain isolation.
Depending on the Broker version,you can use the following plugin in App Mon to check Broker metrics. I would highly recommend to instrument this plugin in QA/Dev Broker (
Or you can install an App Mon agent. Please note that App Mon agent is per execution group within the broker.
I believe Dynatrace support for broker will be here in the next 3/4 months.
Hope this helps.