You can decant Tamiya's rattlecan primers and spray them through an airbrush. They'll thin down with lacquer thinner (recommend either Tamiya's own or Gunze stuff).
Personally, if I can't get my hands on Mr. Surfacer (not a problem at the moment since I stocked up), IMO the best primer in terms of performance, bite, consistency etc is Model Master gray enamel primer. The stuff rocks the house, and unlike Tamiya or Mr. Surfacer there's no need for a polishing sand.
On the Bench: 1/32 Trumpeter P-47 | 1/32 Hasegawa Bf 109G | 1/144 Eduard MiG-21MF x2
On Deck: 1/350 HMS Dreadnought
Blog/Completed Builds: doogsmodels.com