I think that vg twitch streamers make up the largest part of the players on Rollpay, and while I really appreciate almost all of the people you've had on, I think that getting some people from other sources would be good for the channel. The examples I've included are just the first ideas that came to mind when I thought of these categories.
RPG Industry peeps: Like Fred Hicks (Evil Hat), Luke Crane(burning wheel), Jason Morningstar(fiasco/night witches), Ben Robbins(microscope/west marches).
Rollplay adjacent peeps: Sean and Strass from Bloodletters, some people from Geek and Sundry esp. Wil Wheaton, Eric Vulgaris & Matt Colville.
Other creative peeps: Brandon Sanderson (author), Rob Daviou (boardgame designer), Max Landis (screenwriter).
There are many more people in each category that I could choose.