Personally I'd get any of the decent Taiwan made ratchets, Capri for example, around 12 inches in 3/8 and also grab one of the cheap 25 inch breaker bars from Harbor Freight.
Heck, you can get the Capri 12 inch flex 3/8, Capri 18 inch flex 1/2, and the Harbor Freight 25 inch breaker for $100...