Fediverse Observer checks all servers in the fediverse and gives you an easy way to find a home using a map or list.
the-federation.info
Fediverse Servers Status. Find a Fediverse server to sign up for, find one close to you!

On the Lemmy specific front, Active daily users seems to still be stabilising following the exodus from elsewhere, Comments and Posts both seem to be on the rise though – promising stats all in all.