I belong to the Cat Writers Association and know a lot of other authors with cat books—fiction, fantasy, nonfiction, how to, children’s books—you name it. We have 250 members, and I don’t know how many books between us—remember I have 75 cozy mysteries with cats. There are several others who write series as well as behaviorists, cat sitters, veterinarians, etc. in the organization who write nonfiction books on a wide variety of topics. Here’s a link to the book list. Use the tiny arrow on the right to scroll down.
https://catwriters.com/cwa-book-list/
I also found this list of new books you might find interesting, they include cozies, childrens, and more. Here are a few titles that sound interesting, “The Essential Survival Guide for Cat Owners,” and “Feline Philosophy.” That sounds like a must read in my world.