Yeah pretty much every make model size and c rating you can ever want. Maxamps.com is a great place to look. If you let us know what type of car or truck you're putting it in someone can probably give you some more detailed suggestions
Amain also carries a good supply of lipo rx packs. Check and make sure your RX can handle the voltage, lipo RX packs charge up to 8.4 volts, and will output a steady 7+ volts under load. You may need a voltage regulator.