Some people have been asking which communities they should join first, so I posted some remote communities you can subscribe to on the sidebar on the homepage :)
There's also this universal community search tool you can try using. If you find a community, just copy its URL and paste it in /search to subscribe to it here. This just goes to show that while there might not be many local communities here on lemmy.one yet, the beauty of the fediverse means that doesn't matter!
Found a few very small communities with just a few posts from the universal search tool, when I search for these (they are on other instances) I can't find them. They are not on a blocked instance (both are on lemmy.ml), am I doing something wrong or is there some limit in size of community that are reachable through federation? Thanks, am very new to how the federation works in both Lemmy and Mastodon.
Click the copy icon to the right of the community name on the search tool, then go to https://lemmy.one/search and paste in the URL it copied, and the community should show up. If it doesn't immediately show up: wait 30 seconds, refresh the search page, and try again, and then it will work.