There are some really decent canned foods out there -
Firstmate has none of the toxins or fruit/veggie fillers (cranberries contain benzoic acid - bad for animals) - available on Amazon. Also I ordered from Chewy.com some others that seem relatively healthy -
there is Dave's The Cat's Meow - alot of Dave's unfortunately do contain cranberries &/or Carrageenan but not the Cat's Meow & I think there is a 95% turkey formula they put out that is also ok. The Tuna formulas are ok too but Tuna isn't great for cats & mine hate it anyway. Artemis has canned chicken & turkey formula you might want to check into - but not their dry food - that contains bisulfate mendione (synthetic vitamin K3 - the worst of all the toxins). I also found some others that seem pretty good - depends on what your cat will eat -
Castor & Pollox (available at Fairway) has a turkey & salmon blend and a turkey with organic brown rice.
Natural Planet Organics (also available at chewy.com) has a chicken and a turkey flavor. Fromm Family puts out some nice chicken & turkey wet food too. I also looked into
Against the Grain and Feline Caviar which both looked ok but the Against the Grain is run by the Evangers siblings so that might be an issue & Feline Caviar wouldn't send samples so I'm not sure about that company either. Your own judgment but the ingredients seemed healthy. So does
Tiki chicken and Weruva Truluxe but they are made in Thailand and I am very concerned about the huge illegal dog meat trade there.
Pure Vita is another - a bit concerned with the betaine (added salt) but otherwise seems ok - haven't sampled it yet. So there are a few that seem to be trying to fight the toxic ingredients and fillers that the others don't care about but check each label yourself.
Most of these have to be ordered online though as stock pet food stores & supermarkets don't carry them.
Last resort is to cook your own chicken, turkey & beef and shred it with added pre-packaged vitamin & liver supplements from Altunin.
I would definitely stay away from anything containing kitty litter (clay), garlic powder, cranberries, sulfate mendione (look that up - they use a lot of names to hide this very toxic ingredient), alfalfa, sodium ascorbate (promotes tumors in animals) and fishmeal (contains really really toxic ethoxquin which is also contained in purina cat treats & pill pockets contains toxins too). Not crazy about carrageenan or gums either. And Rachel Ray's nutrish is anything but - contains carragenan, sunflower oil & sawdust instead of protein from meat). Also if you can find copper protenate instead of copper sulfate you're better off too. The foods I listed were the best of the bunch and I checked dozens and dozens of labels. Some of them I have to mix shredded chicken into to entice the cats to eat but little by little they are learning to like the better foods.