Normally a higher-calorie food, plus feeding her the amount for what she should weigh and not what she weighs right now should help. This may also be helpful: /dog-feeding-tips/dog-food-calculator/ as it has an option for active dogs.
That being said, here are some quality, higher-calorie AND affordable foods: Victor, Dr. Tim’s, Earthborn Holistic, and, of course, for the really bad cases – Abady Granular – now that is about 700-800 kcal/cup, so you can use it mostly as a topper for another food.
