Depends on foot volume generally. I'd recommend going with a hardboot too (plastic shell w liner inside like a ski boot).
Most of these boots have an average level of lateral flex for an aggressive boot.
USD Aeon (wide but very flat on top)
USD Sway (higher volume than aeon)
THEM 909 (mid to high volume)
THEM 908 (same as 909 but a bit shorter per size)
Roces M12 (narrow foot only)
Razors SL (on the wider side)
Razors Cult (narrower like a Full Tilt Classic)
Razors Shift (fits like Cult)
Pay attention to whether or not the liner is stock, or by an aftermarket company (MyFit, Reign, Intuition). Stock liners won't feel so good especially USD or Razors.
Online shops
oakcityskate.com
rollerwarehouse.com
intuitionskate.com