Do you listen to the Deep Tracks channel on SiriusXM? I am amazed that I occasionaly hear some good songs for the very first time, and I’ve listened to the channel for years.
They recently pushed Deeps Tracks to channel 308, which ticked off a lot of subscribers as you need a newer radio to get those upper channel. I listen mostly through the app as I rarely listen live, I prefer having the ability to skip through a song I don't like.
Other of my favorite channels include The Loft, Spectrum, Outlaw Country, Classic Vinyl, Tom Petty Channel. All those stations have huge playlists that you never really get tired of.