How to make single database replications instead of a whole cluster in PostgreSQL?

Question

PostgreSQL

You need to save the databases in their latest state from different servers on the backup server. Replication involves running a separate cluster for each server from which it is copied, which, in my opinion, is redundant.
Are there means to replicate only individual databases into one cluster? Or is the overhead for the operation of many clusters on one server not so great?

Answer 1

By means of SQL? SQLdump.

Answer 2

Has Londiste already been buried?