I want to repost this excellent article, by Simon Moya-Smith, which you can read by following the link below:

100 Ways to Support—Not Appropriate From—Native People

It starts:

November is Native American Heritage Month, when the U.S. is supposed to celebrate Natives and our contributions to the world. In recognition of the season, let’s start with 100 ways you and yours can be allies toward to the Indigenous peoples of this continent—our ancestral land.

I hope it will be helpful to all of us who want to be allies to Indigenous people.