The nice thing about We Deal in Lead is that it’s compatible with other Cairn and Into the Odd adventures, as gunslingers can travel into different worlds and settings (depending on everyone’s genre tastes). Here’s a link to a number of Cairn adventures:
https://cairnrpg.com/adventures/
If you’d prefer to stick to the Drifted World, you can use the excursion generator to randomly generate an adventure or campaign. I’m also working on new adventures for We Deal in Lead, so keep an eye out for those!