You could buy advertisements... what you're looking for is basically a way to get ads for your product in front of eyeballs, even if you don't call them "ads".

You could buy advertisements... what you're looking for is basically a way to get ads for your product in front of eyeballs, even if you don't call them "ads". I don't see any reason why that ought to be cheap. Maybe I'm misunderstanding what the goal of "marketing" is in this context, however.