Mine get a mixture of
Artemis and
Canidae. Which are both great foods.
We also tried other high quality foods such as:
Chicken Soup
Merricks
Fromms
Innova
Evangers
I'm sure there are more quality foods that I have not listed here, but these are many of the popular choices (and the ones I can think of off the top of my head).
I would recommend getting samples of any of these foods and seeing which one (ones) your furbaby likes the most. Most of the time you can email the company and they will send you samples.