Dry is really hard on cats’ kidneys because they drink so little water. Wet is a lot better but why not just feed raw? Our two cats are absolutely thriving on raw, a mix of balanced mince and whole prey, which they have been on since they were kittens. Their coats are shiny, their breath doesn’t smell and even their poop smells a lot less bad than the poop of my friends’ cats on who are on commercial dry/wet food.
A lot of info on raw feeding can be found in the Pet Fooled documentary available for free on YouTube. Happy to answer any questions about raw feeding too, good luck!!