One of the things about being on a single-user #fediverse instance is that outside of the posts from those you follow, no other posts come into the instance.
On #Mastodon, I could add relays tracking specific hashtags (like #StarWars or #StarTrek) using https://relay.fedi.buzz.
On #GoToSocial, there's no way to add relays (yet). But, there is a way to follow hashtags via relay.fedi.buzz. To do this just search for users on relay.fedi.buz with the hashtag in the username. For example the user for #StarWars is:
