https://www.gamespot.com/articles/where-is-xur-today-destiny-2-forsaken-xur-location/1100-6461963/

We've reached the weekend, which for Destiny 2 players means another appearance by Xur. Coinciding with Iron Banner and a Crucible event that rewards bonus Valor, the mysterious merchant has popped up again with a slate of Exotic items for sale--although, once again, none of it comes from the new Forsaken DLC. Here's where to find Xur and what Exotic weapon and armor he's selling.