make sure on one factor
When purchasing a tripod, make sure of one factor - that the manufacturer's height specification is WITHOUT CENTER COLUMN RAISED. Many manufacturers, in order to make their tripods look better on paper, list the height with the center column extended.
However, you don't need a tripod that is as tall as you are. A tripod head will provide 4-6" of additional height. The average DSLR viewfinder is probably 3-4" above the base of the camera. Your eyes are probably 3-4" below the top of your head. So a tripod that is somewhere from 10-14" shorter than you are tall will place the camera at eye level.
There are times, when you cannot extend all of the legs (such as on an incline) and that tripod height will require you to bend a bit. However, that is an unusual situation and bending a bit in an unusual situation should really be no problem.
If you are using a shorter tripod and want to ease your bending, try a right angle viewfinder. I cut my teeth on a twin lens reflex camera and am quite comfortable viewing my image by looking down. An additional + for a right angle viewfinder is that it gets your camera lower and is usually a more pleasing angle from which to shoot - especially if you are a tall person.