(Sources: Storm King’s Thunder, pages 81-83, 117-119)
Major City: Neverwinter will be a good city for the party to rest up, restock supplies, upgrade equipment, and so on.
Teleportation Circle: Everlund is where the Teleportation Circles are introduced. When the party needs some fast travel, have a Harper let them know about it.
Micro-Worldbuilding Opportunities: I’ll introduce the White Plume Mountain adventure here, where a Dwarf from Sundabar researches the three intelligent weapons rumored to be in a billowing mountaintop in the Nether Mountains. The Sundabar dwarves have discovered the dungeon in their excavation, and some fear that the weapons might fall into the wrong hands—or worse, find their owners corrupted into becoming the Dwarven version of the Eldreth Valuuthra. A few dwarves then decided on what was formerly unthinkable and went to the surface to discuss matters with whatever few surface allies they have left.