One of the few things I've been thankful of this year, is discovering Boom Radio UK.
I came across it, around last June. No idea how or why.
Their playlist is predominantly "easy", but it's weirdly eclectic.
It's aimed at the 50+ audience. Lots of very old music, but the odd new track now-and-then.
In some ways it's more "alternative" than a station like BBC 6Music. Yesterday afternoon, they played Doris Day, Rainbow, and Kraftwerk. I loved it all.