Say you were of an advanced alien species (assuming you're not presently of one) and your species decided to make use of humans (like pets, or work animals, or lab rats). What mbti/enneagram types would be considered useful, what could their different purposes be? What types do you think would be more likely to be bred, more likely to adjust to a subserviant life? What types might be considered "wild" or undomesticated?
(We're assuming here that this species does not view humans as innately self-desructive or a virus on the planet. Maybe they just think we're merely suffering from overpopulation due to a lack of predation, or the degredation of our DNA.)