That's just it. You are more likely to have better outcomes focusing on what you want for you rather then on how you can appeal to more random people.

Why do you want men who want bigger boobs? It seems like because it'll appeal to more men? If that's the case why do you want to appeal to more men? If it's for something like: because I'd like to have sex with more of them, guess what: men just want to have sex, sure some can be choosy, but far far more won't care.

At your young looking age, you can choose from all sorts of men who will have no idea how to please you.