The article mentions Mogget from the Abhorsen series by Garth Nix. Mogget appears to be a white cat with a collar that has a tinkling little bell, which isn’t very unusual.. until he starts talking. It’s revealed that Mogget is definitely more than just a cat due to the things that he knows, though, he does very much like fresh fish. I personally recommend this series for juveniles and up!
Next is Lying Cat from the graphic novel series, Saga. Lying Cat has the ability to know when a person is lying and she doesn’t hesitate to tell you about it either. This is probably pretty helpful to her bounty hunter companion. This series is a bit more adult so more mature teens and adults are great for this series.
Then, in the photos above, is Terry Pratchett’s Greebo is a tomcat who belongs to a witch named Nanny Ogg. He’s quite the killer, responsible for the deaths of vampires, elves, etc. But Nanny Ogg still thinks he’s adorable.