@WinstonSmith1984@mastodon.online
You don't have to be on more instances. Just crawl the social graph. Click on users, explore their posts, click on responses and so on. And follow, follow. Also open instance timelines and Check what's going on. If interesting, follow. In a couple of weeks you'll cover many interesting instances and that way will expand the federated timeline for your instance too. Of course there are isolated islands which you won't reach and need to explicitly go there, but these are typically instances where you anyway probably don't want to be anyway as there's a reason they are unreachable. Most are actively blocking them.
@ercanbrack