https://www.amazon.com/Stratagem-Masters-4-Panel-Customizable-Inserts/dp/B06W5JWBWX/ref=asc_df_B06W5JWBWX/?tag=hyprod-20&linkCode=df0&hvadid=198072796749&hvpos=&hvnetw=g&hvrand=16894088329724454712&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9029145&hvtargid=pla-387546372935&psc=1
I got this one! Four slots and it comes with dnd and pathfinder stuff
I use this customizable one with these sheets I made/converted