Reid could be called one of the godfathers of TTRPG actual play podcasts. Along with his friends, he started Sneak Attack! in 2015, less than a year after the release of D&D 5e.
Sneak Attack paved the way for so many other indie actual play shows, and has been inspiring creators ever since, including multiple of my guests! It is also still incredibly popular, despite the show being on indefinite hiatus as of two years ago.