Go with something really good, stay away from anything with corn. Make sure real meat is in the first few ingredients. I fed mine Natural Balance, it was incredible food. I also like Eagle pack, royal canin, Nutro (make sure it doesn't have corn), Canidae, Natures recipe, Chicken soup (the dog food not the soup lol), or there is Raw diet, which is incredible, but also very expensive, and you must make sure you have it all right including supplements.
In fact here is a link for you to check out on Dog Food analysis.
http://www.dogfoodanalysis.com/dog_food_reviews/