From what I've read, the Navajo's are always mentioned when talking about shapeshifting, but many other tribes are also mentioned.

Below is some info from an article that I included the link to.

"Tribes such as the Navajo, however, talk about a more positive role shapeshifting plays in the formation of Native American culture. Often referring to the practice as “skinwalking,” shapeshifters transform into the bodies of bears, wolves, and eagles for the purpose of healing and protecting their communities."

"...the shapeshifter is associated with cunning, courage, loyalty, and strength. They are central figures in both Zunis and Shoshone mythology and are clan animals for tribes like the Cherokee and Chippewa."

https://blog.kachinahouse.com/the-importance-of-shapeshifting-in-native-american-culture/#:~:text=Tribes%20such%20as%20the%20Navajo,healing%20and%20protecting%20their%20communities.