I did a similar project for a hackathon several years back, we made a service that let you buy someone a drink (presumably alcoholic) at a bar near where they live. Creators would choose the bars and patrons would sponsor a beer/wine/etc at a particular bar. We would recover payment processing fees from bars which would sell us drinks at a significant discount (so the $5 beer you bought for someone cost us $2 - $3). We incentivized bar owners by pointing out that most people would only be redeeming one or two drinks, after which they would likely pay for additional ones.
Thankfully none of us quit our day jobs to pursue the idea - aside from personally receiving ~$200 of free drinks at an SF bar where we knew the owner (presumably funded by hackathon participants who enjoyed our presentation), we couldn't get bars to sign up - nobody wanted to train their bartenders on how to accept our virtual drink coupons, especially without a guarantee of a large audience. We did sign up a couple content creators, which is how we learned that even a large following doesn't translate to much patronage.