9. Lake Havasu City, Ariz.

Whether you’re a hiker, water sports fanatic or history buff, you’ll find something to do while on vacation in Lake Havasu. For the most part, Arizona takes a hands-off approach to regulating rental properties, and there is year-round demand for them, Evolve says. The median rental revenue is $33,588; the median listing price is $272,509; and the estimated cap rate is 9%.