Websites such as puppy find are just about the worst possible way to get a dog. Most of the folks who are posting on there are puppy mills or back yard breeders who do not properly health test, research pedigrees or anything. Tests that should be done on BOTH parents are Hips, Eyes, Fanconi and more.
Please, please do NOT choose a pup this way. I would hate to see you wind up with a dog with serious health issues like fanconi or thyroid disease.
Some reputable breeders can be found listed on the BCOA website, although even there you might find some less than perfect breeders. It pays to do your own homework, check up on the breeder you are interested in and see if they do all the health testing. Don't just take their word for it or believe them when they say "I've been doing this for a long time, and none of my dogs has ever had any trouble with that." Anyone who says this is just covering up for the fact that they cannot be bothered to test. Testing is the only way to be sure!! You can see if a dog has been tested at the OFA website, but looking up their name or registration number. That website is www.offa.org
Have you considered adopting a homeless Basenji thru BRAT?