I'd stay away from the author-centric ones. Not that they are bad, but because they deal with a niche interest and use an outdated model (the author-centered model) they don't tend to be representative of mainstream academic interests. Of course there are exceptions--I'm speaking super broadly.
And for early/19th American, a lot of very good work happens in interdisciplinary journals like The Journal of the Early Republic and the William and Mary Quarterly.