You're already on the silithus stuff! Yay. Did you find the vendors yet?https://twitter.com/MattFossen/status/993860432023597056 …
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
I haven't gone looking for them yet; I did the Silithus work because I happened to be in the neighborhood when you released your guide (great stuff, BTW, once I remembered I needed to go back in time).