Sometimes its nice to let someone else take the wheel and have a jazz station(with a real human) playing while I work.
I'm currently in Chicago so I have a slight bias towards our public jazz station WDCB. Special shoutout to my two favorite programs they host Notes From the Jazz Underground and Jammin' Jazz
I don't have any suggestions on this, but yours made me curious, so I looked up the links to listen to them online: WDCB Live and from the Jammin' Jazz link they also point to Jazz88.
Like ya said, some good tunes to have in the background!
A French station, amazing! TSF is definitely going into the rotation.
I'll be checking out KCSM later today as well, California seems to have a pretty healthy jazz radio scene, love to see it.