There are estimated to be over 12,000 Mastodon instances (servers) in the Fediverse, but only a few are Indigenous. We highly encourage Indigenous people to use Indigenous instances.

TurtleIsland.social

Native/Indigenous owned and operated for Native/Indigenous people in North America. TurtleIsland.social is ad-free, corporate-free, bigotry-free, and culture respectful.
https://turtleisland.social/about

Thanks!
-Yehuda