For carpet racing, Sorex tires are definatly the best. Depending on the track conditions, you should start with 20R's in the rear and 24R's in the front with HPI Red or Sorex Firm inserts. If you have too much traction, go with 24R's in the rear and 28R's in the front.
For running in the street, you can run pretty much anything. Just get a hard tire, like the Sorex 36R's or 40R's and they will last pretty good.
TLR, Spektrum, Tekin, SMC, MO-GRIP, www.factory-rc.com https://www.shapeways.com/shops/MPP