Besides the NPR stations, I listen to KBCO out of Boulder, Colorado. We also have KCUV which is a college rock station also from Boulder, but it's on AM so I listen on Pocket Tunes whenever I can. KQMT is a decent Classic Rock station that plays a wide variety, and the DJs know their stuff. They have 'The List' every weekday at 4pm which picks a topic and plays songs about that topic, also 'Barrel Of Monkeys' which you can call in and request songs based off a theme. It's usually in alphabetical order, or they just pick a letter and play songs starting with that letter. The callers request some pretty good stuff, even heard 'Copperhead Road' which you normally don't hear on any classic rock stations, ever.