14. Cavalier King Charles Spaniel

The Cavalier King Charles Spaniel sits at the upper end of the toy group, weighing 13 to 18 pounds. They perfectly balance the gentle attentiveness of a toy breed with the athletic, sporting nature of true spaniels. Cavaliers are characterized by their sweet, melting expressions and large, round dark eyes. They are incredibly affectionate and generally get along seamlessly with other dogs, cats, and humans of all ages.

15. Bichon Frise

With their dark eyes and puffy white coats, the Bichon Frise looks exactly like a living cotton ball. Weighing between 12 and 18 pounds, they are sturdy, resilient dogs underneath all that hair.

The Bichon is naturally cheerful, deeply affectionate, and prone to sudden, joyful bursts of energy known as the “Bichon blitz.” Because their curly coat traps dander, they are frequently recommended for households prone to pet allergies, though they do require strict professional grooming to maintain their shape.