Commercial Pathfinder Resources
There's a TON of Pathfinder 2e content either already out there or under development from third parties. Obviously Paizo's Pathfinder material is the largest source of Pathfinder 2e commercial content. But that's hardly the end of it. Here are a few examples (note: I don't have any strictly commercial content of my own).
Settings
Eventide - A setting being developed by Paizo luminary, Jason Bulmahn
BattleZoo's Indigo Isles - A setting in progress. Like Pathfinder it's starting with an adventure path
Probably many more...
Everything!
Pathfinder Infinite - The Pathfinder-specific DriveThru RPG imprint. Also just DriveThru RPG!