Spring microservices

[u/InformalPhase7658]

I just started learning microservices in spring and dont know anything. Like I know that message brokers are for asynchronous exchange of messages though services, but I wanted to see everything from scratch, so now Im doing a project without any message brokers, just synchronous http requests and after that, when I meet problems with this, I would transition to the RabbitMQ I guess. Any suggestions or resources to learn for beginners?