Rather specific question: does anyone have experience working with a college student who organically promoted service or product on their physical campus? If so

Rather specific question: does anyone have experience working with a college student who organically promoted service or product on their physical campus? If so, how did you find them initially and how successful was the effort? This is about validating/bootstraping an idea that requires a set of users in the same physical and social space, and as I have no confidence in myself or my direct friends being able to create the right seed culture for this, I’m trying to find a person within an existing community (like at a university) who can. To be clear, I’m not looking for like a one off, Tupperware party style infleuncer, but almost like a social evangelist for the product who can stick with it for a few months and who can also tell me why the product sucks