If you have any Doggie Boutiques in your town, the very best food is The Honest Kitchen. It is 100% Human Grade ingredients made in a Human Grade facility. It is the ONLY pet food in the USA that the FDA legally allows the words "Human Grade" to be used on their advertising and packaging! This is a dehydrated food so a 10 pound box will cost approx. $70, depending on the variety chosen, but it RE-hydrates to 35 to 40 pounds of food!
Put your zip in here: Where to Buy Honest Kitchen - Honest Kitchen Stores | The Honest Kitchen
If you have a Pet Supply Plus near you, try Acana by Champion. Champion also makes Orijen but I think it will be too rich for your Fur Kid's gut.
If all you have is a Petsmart, try Nature's Variety (NOT Nature's Recipe).
You may also want to add a digestive enzyme/probiotic to your dogs meals to help keep his gut healthy and help him assimilate his food better. Digest All Plus is an excellent quality, mostly organic ingredients, and a combo of both probiotics and enzymes. http://www.thewholisticpet.com/produ...ll-plustm.html