VaranisArano wrote: »Do you want to do a stamina or magicka based tank? That's the biggest determinant for race. If magicka, you'll probably look at a Dunmer (if MagDK for the fire bonuses) or an Altmer. If Stamina, Imperial, Orc, or Redguard are all solid choices. If you don't have the All Races All Alliances pack, just pick whichever race from you alliance best fits your choice of stamina or magicka.
You can do content with both types of tanks. I main a MagDK tank for normal and veteran dungeons.
For classes, Dragonknights are the stereotypical tanky class. Warden tanks are very effective with their self-healing. I've seen highly effective nightblade, templar, and sorcerer tanks, but they are less common.