Ok lets start with sitting bull, probably the most well-known, He was too old to engage in battle but would ensist on the safety of his tribe, during the battles he would sit in a tee pee and make medicine for the wounded. As for Black Kettle, he woud sign treatys to do what he thought was right for his people to live good. He was also a great fighter thats he gained prominence as a warrior during the great battle against the Kiowa.
Hope this helped!! Have a good day c;
