Well, whatever you can find reasonably priced.
The Dragon Records series on Gullin is excellent. I find it hard to get these cheaply. . . .ejazzlines.com has excellent service and has the best prices, about 20 dollars with postage, that I've found recently. There are nine volumes, all good.
For Wilen, the "New York Romance" (aka "Le Ca"-there's a cedille there I don't know how to make on this keyboard) is pretty easy to find, and I think available on emusic. Again, almost anything you can find is worth hearing; I especially like his later, mature years, seem most Mobley-Jones like to me.