IMHO, vet's suggest garbage type foods like Science Diet and Eukanuba.
Orijen or it's sister food Acana, or Fromm's would be a good choice for higher quality food.
If you are considering raw diet, there are some good commercially prepared, balanced foods such as Bravo or Northwest Naturals, but as Lykoz mentioned, you REALLY need to be ready and committed to it.
The other avenue that you could take, if you wanted to feed real food instead of kibble, is to try The Honest Kitchen Dehydrated Foods. Embark, Love, and Thrive are "for all life stages" and suitable for puppies. It is the only pet food in the USA that the FDA will allow to use the words "Human Grade Ingredients" on their packaging and advertisements. All Natural Dog Food - Dehydrated Pet Food | The Honest Kitchen
Whatever you decide to change to, do it VERY slowly when transitioning a dog or they could 'have a blow out" if ya know what I mean! LOL
Use the food the breeder gives you and take a couple of weeks to slowly wean the pup on to the new food.
Good luck and we expect pictures of the Little Fur Baby!