Here are some people that R4A personally works with and highly recommends:
What do we feed our R4A dogs?
I'm a HUGE proponent of feeding the best food that you can afford that is GRAIN FREE.
I feed my personal dogs and the R4A foster dogs Nature's Domain Grain Free.
There is dry kibble, canned food and also soft jerky type treats.
They have four different protiens for the kibble: Salmon (which is what I feed) Turkey, Beef or Chicken.
You can purchase it at Costco OR online via Amazon.com
If you are local here in Spokane, I go to the Spokane Valley location because they have a better selection there.
What about "chewies"?
For "chewies" things for dogs to gnaw on I use beef marrow bones. You can buy them at the grocery store in the freezer section or from a local butcher.
I give them to the dogs FROZEN. Giving it to them frozen make it last longer and also the raw bone and bone marrow have amazing nutritiional benefits for them! These work great for megaesophagus dogs too!
After they finish them you can either restuff them with wet dog food or peanut butter then freeze them again and give them the treat in their create :)
I also buy bullysticks at Costco you can get a package of 12, I use garden sheers to cut them in half to last longer as they tend to be more expensive. I occassionally will give them antlers when I find sheds while we are out hiking.