I've been considering this for a while as well, but the area that immediately sprang to mind for me was Q'Barra. The "nation" of Q'Barra is split into two portions: the "we don't want anything to do with your war" folks in Newthrone, and the "hey, this looks like a good place to hide out until the cops stop looking for us" folks in Hope. Villages in the Hope part of town have a nasty habit of vanishing, which works to explain the presence of things like bridges in an otherwise largely unsettled area. Granted, the first thing people think of when they think of Q'Barra is lizardfolk, but I'm thinking of placing the Stolen Lands on the western edge of Q'Barra, near the Endworld mountains, keeping it as far from lizardfolk country as possible - although it may be advantageous (or necessary) to change the boggards in later adventures into lizardmen, to keep that feel.