Most brushless ESCs will be compatible your Traxxas motor- the main exceptions being those designed for single cell (1S) use, or those with a low KV limit. Some of the 'stock only' escs will have no ability to apply timing/boost, so unless you are racing avoid those because you won't be able to make your Rustler run as fast. Feel free to post up any of the ESC's you are looking at if you want to check. Hobbying, Reedy, Tekin, Castle Creations all make plenty of ESCs that will work for you.