I’ve not done too much research as to most and least affordable, but if you’re not opposed to foods made by Diamond, I believe a couple of their varieties (DN small breed puppy and Extreme Athlete) are 5 star, and usually it’s about $1.50/lb. There are quite a few others that are relatively affordable, but you’ll probably be looking around at least 2-3$/lb. Some TotW and Victor foods are 5-star as well.
I’ve not tried a vast variety of foods myself, as I don’t have access to a whole lot, so I can’t tell you what /the/ best balance of price/quality will be.
Hope you find something that works for your dogs and your wallet!
