joinmastodon.org seems to be really slow right now, so its time to share some other lists of Fediverse instances:

https://fedipact.online/ (if you really want to escape meta you have to join a server that doesn't collude with threads)
https://fedi.garden/
https://fediverse.party/en/portal/servers/
https://joinfediverse.wiki/Instances
https://instances.social/
https://fediverse.observer/
https://contentnation.net/de/favstarmafia/artikel2
https://pixelfed.org/servers
https://join-lemmy.org/instances
https://joinpeertube.org/instances (error)
https://instances.joinmobilizon.org/instances