If you’re not using Brent Lewis, jump on the boat! He has a multitude of wonderful percussion CD’s that work so well for so many things. I use them religiously in Modern and also for Tap cross floor.
Judy Ann Bassing has a very nice line of simple percussive and piano selections that make teaching intermediate level tap very easy.
For Advanced tappers, I love to mix things up to make them pay attention and work on their musicality. The Piano Guys, Zoe Keating and Vitamin String Quartet are wonderfully interesting artists that offer alternatives to the norm. Peter Jones is another contemporary artist that also offers a nice feeling and variety of tempos.