I see people talk about not being able to find enough people to follow on Mastodon. I have never really experienced that, since I quite early started to follow different local timelines, and therefore always had a place to go.
Now I’m following enough for my home-timeline to always be filled with great toots, but I sometimes jump into the local timelines to see what’s going on. It’s by far my favorite thing about Mastodon.
On iOS you can use the apps IceCube or Toot! for this.