There's a lot of great bands out there and it is a bummer that many of them don't appear on our radar screens. What you hear on radio stations is what program directors have decided is popular at the time, and great bands that don't fit those genres get ignored.
A few years ago I was in my car listening to Sirius and heard a song by a UK band called Porcupine Tree I really liked, so I checked into them later and became a big fan. The band started around 30 years ago and has a strong following but I'd never heard of them until I heard them on Sirius.
They are a progressive rock type band often compared to Pink Floyd, but that style of music has not been mainstream in the US in the 90s and 2000s like it was in the 70s, so someone like me never was never turned onto them.
In spring I was checking out a Youtube video and noticed one of the preview video links on the right side of the screen showed a cute blond playing a interesting looking guitar (which I later found out is called a cigarbox guitar) and decided to check it out and was instantly hooked. Samantha Fish is a super talented blues rock style guitarist and singer, and I've been a fan of that type of music forever it seems, yet I'd never heard of her and maybe never would have if not for that preview image on Youtube.
Great timing on finding out about her too for me, there is a restored vintage theater in a neighboring town that has been having concerts since reopening not too long ago, and I got a mailing about upcoming concerts in June and saw that Fish's band was appearing the following week. I bought a ticket and went there to see her show, and was blown away by her show and the venue. I'm a huge fan now, and would have been a big fan for years but never had heard of her since blues rock is not something in the mainstream currently. She should be selling out big venues, but the 800 seat theater I saw her at was only maybe 2/3rds filled up.
https://www.youtube.com/watch?v=xOO95Omi9tQ