Echoing catinfo.org. Totally changed my approach to cat nutrition! I’m also an apostle of catfooddb.com which has comprehensive reviews of most cat foods and their nutritional profiles (it’s not responsive to all changes by manufacturers, but the author is really good about keeping it updated.)
I feed a mix of Tiki Cat, Halo, and American Journey Landmark canned food. I try to prioritize poultry over fish. If I were rich, I’d feed only Tiki Cat, but my wallet can’t handle it (haha.)
For my older cat who isn’t picky, I usually add a tablespoon or two of water to the food to make more of a “soup.” I’m a little paranoid about urinary issues and dehydration.
I haven’t cut out kibble completely–every night I divvy about a tablespoon of Wellness Core dry food between three of these mouse feeders for my two cats to “hunt” overnight. I like to put them in high places and make the cats go looking for them. More something to fight boredom than an essential part of their diet; 90% of their calories still come from canned food.