Smoky Mountains in Feb

We are wanting to go to the Smokies in Feb, and wanting to not be in a tight parking lot type campground, but it seems most of the ones I find like that are closed for the winter.

Any suggestions? We had thought about the east side of the park around Bryson, but everything seems closed.

We do need at least electricity since we have a resi fridge, but no genset, and only enough battery for about a day or so. That puts the park campgrounds out of the picture.

Thanks