NPR has been putting out some really good stuff lately:
Fresh Air: "Remembering Martin Luther King Jr. as an 'organizer of the people'"
https://www.npr.org/programs/fresh-air/ Under the Radar: "What defines a protest anthem?"
https://www.wgbh.org/culture/2025-01-17/what-defines-a-protest-anthemI also caught a good one on Monday about Martin Luther King, Jr. from 1A, but I gather that that one was a re-run.