The Wayback Machine - https://webcf.waybackmachine.org/web/20220126043358/https://friendi.ca/resources/find-a-server/

Find a server

Have a look at the list of public servers or you can look at the statistics of the servers that are running with Friendica, Diaspora and Hubzilla which are compatible to each other. At this site look for servers that are marked with “open signups”.