A collection of patterns and collections that I found helpful – and you will hopefully do too.
Self-Contained Systems (SCS)
The website that describes the goals and properties of a self-contained system: https://scs-architecture.org/
Event streaming and data replication using HTTP Feeds
If you don’t have to deal with thousands of events per second and don’t want to introduce another technology like Kafka or JMS, maybe HTTP Feeds are enough for you: https://www.http-feeds.org/