Stygia.... Fonrit, probably. Lots of slave-owning, tyrannical sorcerer-lords (or rune-casters, but whatever) in different city-states, with evil gods.
The islands around Teshnos can probably serve as an arena for swashbuckling, jungle-based sword-and-sorcery adventures. Though, again, Fonrit can probably achieve some of the same.
The Janube valley, while a lot colder, has the benefit of also being largely disorganized with a lot of different city states about. The same goes for Ralios (more temperate), which is famous of lots of secret societies, cults, skulduggery and high-stakes politicking mixed with magic conspiracies.