I'm a big fan of Ry Cooder. On his album "Pull Up Some Dust and Sit Down" in "John Lee Hooker for President" he channels John Lee Hooker perfectly. Everything on the album is profound in the way he can sing about social issues without venom which I consider to be activism done right. https://open.spotify.com/album/3IVWmaFJtcx2awW1QPV8GD