Alot of this has to do with you and knowing yourself. Perhaps the rabbi wanted the leave the question open ended to see what’s important to you.
That’s great that you want someone who is a yirei shomayim. However there is a lot more than that. For example if there is a guy who really wants to learn for the next 30 yrs and is planning in living in poverty does tat work for you? Is that what you want? Someone else wants to be a doctor and work 80 hours a week is that what you want? Another guy will only live in bnei brak. How about a sfardi or ashkinazi? Out of town vs NY. Modern Orthodox or chassidish? Do you want guests and kiruv every Shabbos?
I think it’s important to figure out what you want in life and what your goals are. What are you looking for what are you strengths and weakneses?