Fencing types Beauty, budget, and breed of dog may affect the type of fence you choose. I can't believe the number of people who think a fence is ugly and that it will ruin their yard and landscape. I think there is nothing more lovely than a nice split rail or wrought iron fence. Buy the best looking fence you can afford that is strong enough and high enough to restrain the size dog you plan to get and that meets the zoning code of your community. If money was no object, I'd prefer a nice high masonry wall such as those that surround movie star homes in Beverly Hills.
Walls are the strongest barrier and they promote privacy.
Perhaps the ultimate for me would be a brick wall interspersed with tall wrought iron bars and a big ornamental wrought iron gate. For 12 years we lived in a townhouse condominium. Next to a wall, this was a very fine dog containment system. People couldn't see in, the dog's couldn't see out, and the little patio almost became a room extension of the house. Solid wood privacy fences are available, but they are very expensive and they do block the view.