As other's have said, she is too young to be bred and you should be talking to your breeder. If they had intended for your girl to be bred they will help you choose the right male for her.
I don't personally believe that a dog MUST be a conformation champion to be bred but they must go thought the proper health testing and have something to offer the future of the breed. Not trying to put words in your mouth because you haven't stated your reasons for breeding, but if it's simply to make more basenjis ("just pets" "I want to make money" "it looks like fun" etc) than I urge you to reconsider!
Good luck to you!
When you breed your bitch, you are putting her life at risk. Sure, problems don't usually happen but they occasionally do; would you know how to recognise them, and would you know what to do? I have had two emergency C-sections done and they can be quite expensive. Breeding is not cheap if you do it right, so if you think you're going to make money...