>>3917829>There literally isn't a pocketable MF unless you start looking at 70+ year foldersOnce you do start looking at folders, though, they're generally really nicely pocketable. And you can often find 'em really cheap at antique stores, although it might take a while to find one that takes 120, doesn't have holes in the bellows, and has a decently functional shutter.
You could also get a Fuji GF670, which is a modern folder, but... not cheap.
Pic related--from my Franka Rolfix 1, which is a folder I picked up at an antique store for about twenty bucks.