If you’re looking for a new dog, check out this list of the friendliest dog breeds! Discover 20 sweet, social pups who'll melt your heart. Dogs by nature are friendly creatures. After all, there's a reason why they've earned the nickname "man's best friend." Some breeds, however, stand above the pack for friendliness. While by no means an exhaustive list, these breeds are considered to be at the top for their sweet, sociable personalities. Check out the 20 friendliest dog breeds!