Looking through the Talents lists in IHMN and HVF, here are what I think might be "standard" (almost all have these) and "common" (many have these) Talents for automatons, as well as "prohibited" Talents (those an automaton is quite unlikely to have):
Standard:
Fearless, Iron Will, Numb, Tough*
Common:
Antivenom**, Coldproof**, Fanatic, Fireproof**, Immortal, Strongman, Terrifying
Prohibited:
Leadership, Master of Disguise, Part of the Crowd, Rapier Wit, Swimming
* I would also generally not allow automatons to have a Pluck better than 4+, but that's personal taste
** if an automaton has all three of these Talents, it is considered waterproof at no extra cost. It still cannot swim, but may walk underwater without flooding internally
This could also be used for mystical constructs, like the golum.