How Do You Pick Which Mental Models to Learn?

How do you pick which models to learn if you're working under an organization or your student? How would you go about having a conversation with somebody about which mental models to prioritize? And why? Yes, i think one of the thing jone ask is, who are the relevant actors? So is this a single actor who's sort of just making a decision, or is this a strategic situation where someone is taking an action and they've really got to take into account what the action is of someone else. If it's being made by an organization, verse is an individual that could move you in either way.