8. Newfoundland
Labradors, Great Pyrenees, and Tibetan Mastiffs are a combination of breeds that make the Newfoundland dog. The resemblance is more of a Great Pyrenees, but with the color of a Labrador. This dog with a big heart is easy to train, calm, gentle, and intelligent making it a great service dog. Don’t use a loud voice though because Newfoundlands are sensitive.