I need to familiarize myself with PgSQL a bit more on that note.
HA is known thing for me in MySQL. And I've never bothered with Posgres since we were migrating from it to MySQL since MysQL is better for HA (master-master mainly).
With extensions such as citus maturing, and PgSQL getting more and more replication thingies it is time to revisit it.
social.tomica.me is one server in the network