TV Tropes generally has a big list of characters from a ton of media, by certain hair colors. For white, try Mystical White Hair or White Hair, Black Heart or Disease Bleach for a bountiful list of characters with white hair. You may have to sift through the list to find some with shorter hair.
Off the top of my head:
- Dante or Nero from Devil May Cry
- Robin from Fire Emblem
- 2B or 9S from Nier:Automata
- Cable, Magneto, Quicksilver from Marvel