With a nearby state prison, DOJ 737's are quite common. You can see when these file for Travis on Flightradar.

747 freighters are the most common civilian aircraft at Travis. They fly through almost daily. Atlas, Kalitta, National, and Western Global all send their 747's through Travis.

Note a civilian aircraft flying an AMC mission will use callsign CAMBER (CMB).

ATI sends their 757 combi to Travis. This extremely rare bird almost exclusively flies through Travis!

ATI 767's are the most common. Occasionally 767's operated by Atlas and Kalitta will come through.