Educate yourself, see all the reservations near you and respect them as much as possible : https://experience.arcgis.com/experience/49f7458ad70c4bac949f421ddf5081c3/
If you think you are in the bloodline of a tribe, you can apply here : https://www.bia.gov/sites/default/files/dup/assets/public/raca/online_forms/pdf/1076-0153_CDIB%20Form_Expires%2011.30.2024_508.pdf
Read about the Native American Heritage Month on the NCAI website : https://www.ncai.org/initiatives/native-american-heritage-month
"Every year on November 1, Native American Heritage Month is celebrated to honor the remarkable Native Americans who have contributed a lot to improve the character of the nation. This month is also referred to as the American Indian and Alaska Native Heritage Month. November is the time to rejoice in diverse and rich cultures, histories, and traditions and to appreciate the great contributions of the Native Americans. This month allows us to spread awareness about tribes or to educate people about the various challenges faced by the Native Americans in the past and today. Throughout this month, we commit to keep on supporting the remaining Native American tribes and let the world know about their sacrifices." : Nationaltoday.com