I can see Brown and KVA falling into the late 2nd. Brown is all about the athletic upside but there are questions about coverage and his instincts. I think his upside is Carson Schwesinger and his floor is probably Anthony Hill.
As for KVA, I think the upside is higher, but he needs a full year at MIKE and no sign of injury. Back half of the first round is probably his tops.
The range for Cole is massive. He probably is a 3rd-4th rounder right now if you don't take into account his potential. But he could be a Jihaad Campbell or Jalon Walker depending on how he's used and if he has an excellent year.