This article on Bandcamp is a handy introduction to re-releases of UK progressive jazz from the 1950s, 60s & 70s available via the site. If your tastes run to where jazz was taking on avant garde ideas and bringing in influences from rock and funk you will find plenty to enjoy here from the likes of Harry Beckett, Elton Dean, Stan Tracey and more. It’s also a good starting point for exploring jazz on the bandcamp site by seeing what other releases these labels have available.