Tuxedo describes a coat pattern rather than a breed: a bicolor cat, usually black and white, with a white chest that looks like a shirtfront and often white paws, chin or a facial blaze. Grey-and-white Tuxedos exist too. The pattern comes from white spotting variation in the KIT gene, and because it isn't sex-linked, males and females are about equally common.
Most Tuxedos are domestic shorthairs, though the pattern also shows up in breeds like the Maine Coon and Persian, which changes grooming needs. Stories about Tuxedos being especially smart or bold are fun but unproven, since color doesn't set personality. In Oakland, where many cats live indoors in apartments and bungalows, what matters is each cat's age, energy and history, so spend time with the cat before deciding.