While your observations are spot on regarding commercial stations, with a tiny bit of effort you can flip the whole scenario on its ugly earnings-driven head.
Most of us have mobile phones that can connected to car stereos. Independent radio station growth has been steady. "Live Radio" features in popular apps like Roon, Spotify and Pandora have given these stations, many from universities, far more listener reach, allowing them to keep their niches and find more listeners and support.
So I would suggest you download apps from stations like these (or find them in your streaming apps) and let your car time be musical discovery time:
- KUTX - Univ. of TX-Austin
- WXPN - Univ. of PA
- WFUV - Fordham Univ.
- KCRW - LA inde radio
There are thousands more...those are personal favs for inde rock, folk, blues, modern. All are commercial free and have far wider, deeper playlists and genre-specific shows. Cheers,
Spencer