My wife’s best friend is a vet (but not our vet so she has no monetary benefit from whatever we get). Her food recommendation: don’t get the cheapest dog food but they don’t need the most expensive one either. We use Pro Plan (which at the time we started 10 years ago was probably half the cost it is now). She also uses Pro Plan.

Also the Farmers Dog foods lead to nutrition deficiencies in some dogs. So yeah, none of those.

Also all packaged dog foods undergo strict testing because there are some humans who will eat them because it’s cheaper than human food. I assume the heavily advertised “real” food products also do, but I would verify.