Thuria and Beyond
In our campaign, drow reside in Underdark communities up to the scale of city-states. They are very rarely seen on the surface and are wholly unknown to most surface dwellers. Sometimes, however, powerful drow forces spot opportunities to meddle in the affairs of the surface world.
One potential adventure hook in our campaign concerns the presence of drow and illithids in troubled Zamara, with the drow faction seeking an alliance with those who venerate the spider-god Zath, who is kin to their own demon spider goddess Lolth. Generally, the drow and the ilithids are enemies.