If you can let us know do you plan to feed wet, dry, both, and a budget range it would help with recommendations.
But what i feed most is Tiki Cat the after dark flavors, Weruva paw lickin chicken and chicken frick a zee, sometimes some Goldie lox. Earthborn Catalina catch. Fussie cat super premium chicken and egg. Against the grain chicken flavors. some rawz, but my cats are picky with this one, sometimes they like the turkey . and some of the fancy feast classics and grilled varieties. I also feed Nutro minced chicken and turkey sliced. Nulo, the minced flavors only. and trying the new American journey from Chewy. as you can see i have quite a few in my rotation
as for dry the only low carb dry food that i have found is Dr. Elsey's chicken flavor only, my cats did not like their salmon.
for treats the only thing i will feed mine is some freeze dried chicken such as Pure bites, or Orijen treats.
Virbac C.E.T. Oral Hygiene Poultry Flavor Cat Chews, Poultry, 96 count
These are the only dental treats I've seen reviewed favorably from a reputable company. I have never bought them because they've been really difficult to keep in stock. They also have a fish flavor.
I kicked my cat off dry food almost two years ago, and ended up getting him a professional cleaning. I'm curious to see how well his teeth are keeping clean on the homemade raw diet.
My girls eat dry and canned. They're on Dr Elseys cleanprotein kibble and usually Nature's Variety Instinct canned chicken, but we switch it up from time to time.
Pure bites treats are a bit hit here! The dog loves them too, and I am a firm believer in sticking to a fish free diet to keep the litter smelling better! What goes on must come out lol! Chewy.com let’s you auto ship food treats and even heavy litter for the best prices right to you! Auto ship saves even more I love it!! PureBites Chicken Breast Freeze-Dried Cat Treats
The CET dental chews for cats are no longer made but you may still be able to find them online.
For general treats, most people here prefer healthy freeze dried meat treats instead of poor quality treats like Temptations. Kind of like fresh fruit vs potato chips. Here's a thread with suggested brands: Cat Treat Suggestions
Here are some threads on affordable foods many of which are grain-free.