10. Boston Terrier and Co.
I'm including Bulldogs, Frenchies, and all other flat-nosed breeds in this one. Bostons are energetic and eager to please, and are the perfect size for the open road. That being said, brachycephalic breeds are often prohibited on flights, as their narrowed airways can cause difficulty breathing at high altitudes. Consider passing on air travel, and stick to the on-ground excursions with these guys.