Netgear Range extenders for Arlo: WN 3000 or AC 750
Unless you mean to move the base station, the extenders won't work. The Arlo wireless cameras create a dedicated WiFi network with the base so an extender won't help. Use of an extender will help by allowing you to move the base to a more central location relative to the cameras.
If you'll be moving the base, either of those extenders should work fine.