Arch support inside of VFF

I’m in PT right now for left hip and lower back pain/tightness. They’ve looked at my walking/running gait and claim I overpronate in my left foot. He is saying to get shoes with arch support for running. I really don’t want to go back to narrow toe boxes, and too much cushion ruins my form (probably not the greatest in the first place) and lowers my cadence. Has anyone tried arch support inserts in their vibrams?