Holly, I don't know what clubs would be good in your area, but a good place to start is doing a search on AKC's site, and contacting those clubs to find out where and when they hold classes. Also they may have some individual members who do their own classes if the club itself doesn't do anything. Andrea might have some specific recommendations.
From there you can choose what type of club you want to search for, like conformation or agility. And then narrow down the search by state. Best thing to do is attend some of the different classes to watch and see if you like the instructor's way of training. Usually classes that focus on positive reinforcement and things like clicker training are often the best bet.
Good luck, looking forward to meeting you and your crew this fall. Maybe we'll even head your way for a show or trial this summer? Did you get your dogs from a show breeder? If so, they will be able to help you out a lot with what classes to enter and how to best handle your dog. If not, there are lots of us here on the forums that can help too as best we can. A good thing to focus on for this year's national is to come and watch all the events and soak up all the info you can. It's a long hard road doing some of this stuff with Basenjis. lol But so very rewarding.
Most agility classes require your dog to have gone through a basic obedience class first. So that might be another thing to look for. Have you thought about rally obedience as well? These classes are often more fun and interesting than traditional obedience, that might be right up your alley too?
Also most facilities that hold dog classes will require you to be up to date on vaccinations (some require more than others) and have a recent fecal test done (usually within about 60 days). So double check you have everything in order and paperwork handy for enrolling in a class. Also you'll have to check with the instructor, but usually they ask that you have a flat buckle collar and 6 foot leash for using in class. So you'll probably want something different than whatever you use at home with all their tags on it. If you're going to try showing, then you'll need a special show chain and lead. You might have to order something online or find a show in your area, they have vendors where you can get supplies. And another thing is to figure out a good treat that you can use for training that your dog likes. Something that you can use in tiny pieces that fits nicely in a pocket or bait pouch. And something that your dog values highly. lol