then at the moment lemmy.world is the largest one. Its run by mastodon.world admins and is still relatively oerformant and reliable given its size. Lemmy is growing rapidly and that could change very suddenly any day now.
What is the criteria for being in the "Recommended" category on that site? Does the website think those are the best?
This is more of a support question, related to using Lemmy. Please see the sidebar for additional resources.
It also runs afoul of rule 1 as it's not a particularly open question.