FPV motor selection starts with the frame size, propeller size and battery voltage. For common 5 inch 6S builds, a 2207 motor around 1700KV to 1900KV gives strong throttle response without making the setup difficult to control.
Buyers should also check mounting pattern, shaft size, connector preference, spare bearing availability and ESC current rating. When purchasing for a team or shop, keep one consistent motor platform in stock so repairs stay fast.