Hi Shevy,
I usually stay at Elkhart campgrounds. It is a very nice campground with a lot of things to do nearby i.e., Walmart, Menards, and places to eat. You can visit the RV museum, schedule a tour at the HeartLand factory, visit Shipshewana Flea Market and try out the Amish restaurants. In the warmer months you can take the South Bend train into downtown Chicago and visit the many sites there if you choose.
Happy Trails & Safe Travels