Rogues and druids (only with Cat Form) can stealth in the classical sense. The druid version, called Prowl, is much more limited in that nearly any action (attack, cast spell, fall, etc.) will break stealth except Dash (rogues have Sprint) and Track Humanoids. Rogues can Distract, Pick Pocket, and Sap while in stealth and stay stealthed.
Mages can use the Lesser Invisibility or Invisibility spells to move about similarly to stealth. All classes can use a Potion of Lesser Invisibility or Potion of Invisibility. Spells and potions have the advantage of not reducing speed, but they have short durations (20 sec or less) and no interactions can happen and remain unseen.