Border Collies are considered the smartest dog breed in the world due to their ability to learn quickly and follow complex commands.
Poodles are also highly intelligent and excel in obedience training and agility competitions.
German Shepherds are known for their loyalty and protective instincts, as well as their intelligence.
Golden Retrievers are not only friendly and affectionate, but also highly trainable and intelligent.
Doberman Pinschers are intelligent and fearless, making them excellent guard dogs.
Shetland Sheepdogs, or Shelties, are highly trainable and excel in obedience competitions.
Labrador Retrievers are not only popular family pets, but also highly intelligent and trainable.