I don't know about anyone else but there seems to be a shortage of great rock stations around that cover olympic class newer rock. A few might have a great tune every so often but mostly mediocre & garbage rock.

If you have a lead on a stellar rock station, post a link to it & get a list started here.

I'll start it off with this hole in the wall station, the only one I can find I can listen to & never hear a boring song. The Boss @ https://myspace.com/theboss_bluesrockradio

Other than that, I've gone thru about all I could find on the radio channels listings with pretty disappointing results.

Don't know too much about underground rock stations, but I'd say look for online radio or soundcloud or something like that. Great places to find underground stuff