Seems to me that as Jazz music listeners find fewer radio stations in the U.S., there are loads of them overseas. Right now I'm listening to University radio from Istanbul  Dinlemek için tıkla Location İstanbul, Turkey Jazz Blues Istanbul Teknik University For Students, Turkey and International.   Looks like this university was founded in 1453!  https://www.istanbul.edu.tr/en/_

Saturn Radio is a Windows program that works very well to find and play radio stations around the world. Details HERE.