I made up a bunch of loops sampled from records that are fun to practice with. I posted some on my site as youtube videos, but you can download my whole archive of them. The older ones are only a few bars long, but lately I've been doing full choruses/solos.
I got one: The Sermon, by Jimmy Smith. The title tune is a 20 blues jam, with Blakey on drums, who plays nothing but a shuffle. Shuffle along with it. The practice your left hand comps, while feathering the bass drum on the quarter notes.
I always think of swing as big band and its cousin is the shuffle. Both a triplet feel. If you are starting out, you might want to listen to or play along with Little Feat, Waiting for Columbus. Lots of nice shuffle work on that and good learning material.