Might I suggest looking for an adult yorkie?
Yorkie puppies can be psychotic (in the best way possible haha). They can be really stressful because they're so small and constantly under-foot. and they can also be high-strung.
If you get an older dog (I mean 2-3 years) you will already know his/her temperment and attitude. and if you get one who is trained then one of the most stressful parts is dealt with!
Sometimes people post on here if they need to rehome an older dog for an unfortunate circumstance.