You likely have radio stations you like. If you need an online source for Jazz.

As a P.S., they do, on some evenings, play mainly Blues.  Saturday night is one of those nights.  If you like Blues, great....if not...the rest of the time it is mainly Jazz and some vocals that bridge the Jazz/Standards gap...kind of like Dinah Washington, Sarah, Ella, Krall and more.  Even some Sinatra and more.  The young people attending this community college are sometimes "guest" DJs and it is always wonderful to hear someone that young enjoying some of America's best gift to the world of music. 
I like Audiophile Jazz and Linn Jazz also. But i do dar more vinyl than streaming.