I would second the Hobbywing 1080 G2, it has enough features to keep most racers happy. The Tekin brushless ESC can be converted to brushed but it more complex to setup.

Lastly do not waste money on the ISDT brushed ESC. While it may look good on paper, the ESC has some strange quirks, eg braking when you let go of the throttle when drag brake is disabled makes it useless for racing.