I've gotten so many different guesses. I find it amusing. Some of the guesses are way out there.

Is that a Portugese Water Dog?
a big Schnauzer?
Poodle?
Bouvier?
Airedale?
Irish Wolfhound?
Great Dane? (didn't know Danes had beards) lol
Scottie? (um yeah a scottie on steroids, I get this one the most)