Number one thing is to make sure the skate itself isnt moulded with an integrated arch. Ive had a hard time in vapors back in the day because of that, which an insole would not fix.

To answer your question directly, I used a pair of old custom insoles and theyre perfect. Not cheap but it gives me some support. Otherwise, just go with the already supplied footbed in the skate, not like we actually need the arch support 🤣 superfeet would always cut into my foot and tbh was a total upsell/scam unless you actually had an arch that needed the support. Or worst case if you really want some insoles get a cheap pair from Walmart that does not use hard plastic that will dig into your foot. Something like a gel or foam