4. French Bulldog

French Bulldogs are another example of small but adorable pups. They love hanging out with people more than running a marathon. Frenchies are also fairly quiet, which makes them suitable for apartments. Their sturdy bodies may feel easier to manage than those of more delicate toy breeds.

Like Pugs, however, French Bulldogs have flat faces and may experience breathing problems. Potential owners should also take into account possibly significant veterinary expenses.