A hybrid/self made belt. Try to get one that mimicks your current rig. I keep tools on my right, (right handed) and materials at my left. Plus a drill holster on my backside. My current setup is showing its age. When I do swap it out, I mount the old bag in the interior of my van, and it lives on.
This is CABL.com posting #326301. Tiny Link: cabl.co/mbw25