Only the schools of Illusion, Conjuration and Necromancy. Especially necromancy given that Redguards are crazy about both Arkay and Tu'whacca. As long as you limit conjuration to binding weapons and not summoning a creature to fight for your hide then it would be ok. Conjuring swords with their minds was one of the first things most sword-singers of old learned after all. Illusion is milkdrinking stuff so that is pretty much out completely out of the question along with necromancy. There is nothing that says they are against Destruction or Restoration.
Technically the whole "Redguards hate magic" is only applicable to 3 schools. They don't really hate magic as much as they just prefer their own such as http://www.uesp.net/wiki/Dragonborn:Wind_and_Sand_(book) and http://www.uesp.net/wiki/Lore:Pocket_Guide_to_the_Empire,_3rd_Edition/Other_Lands magic
If you played Daggerfall , there were a lot of Vampire clans in Northern Hammerfell so I don't think werewolves are too much of a big deal especially considering werewolves are always strength orientated creatures unlikely vampires and their trickery.