A pair of those gamechanger insoles you put in the oven. Hopefully they don't crumble within a month.
My brother is skating a pair of those at the moment. I think he's had them since Christmas and they're still going fine.
I have the footprint orthotics in some era pros.
Honestly, the insoles look identical, but the gamechanger oven baked ones are a lot more firm on the sides around the heel (which is probably better for heel lock).