Hey! I was able to find a post by Shawn that lists the fonts: proxima nova (body) and Poster Gothic Round (headers)
But he says they're not free. They're licensed and/or available via Adobe CC subscription. But he also linked to the best stand-ins for if you want to use something free:
https://fonts.google.com/specimen/Encode+Sans
As for templates and tools, you should go ask around the Ironsworn Discord server :) I'm not familiar with them all myself, so they'll be more helpful. https://discord.com/invite/6QMvmJb