Border Collie is the smartest dog breed due to their ability to learn and follow complex commands.
Poodle is the second smartest dog breed and is known for their trainability and problem-solving skills.
German Shepherd is a highly intelligent breed that excels in obedience training and working roles.
Golden Retriever is a versatile breed that is not only intelligent but also friendly and loyal.
Doberman Pinscher is a highly trainable breed that is often used in law enforcement and military roles.
Shetland Sheepdog is a small but intelligent breed that excels in agility and obedience training.