So I didn't see many (any?) remote control holders for 3 remotes, so I whipped one up in Fusion 360. It seems to hold any standard Sony, Samsung and LG remotes. Also holds the newer Comcast/Xfinity voice remotes. I think each slot has the perfect amount of slop to hold remotes in a fairly upright position, so I hope you enjoy this design.

Print with the base flat on the bed and you'll be golden. No supports needed!

Cheers!