Hi
I would offer your service/platform to student bodies (student council) at universities and high-schools. I assume (but you would need to check) that they are your target audience and by onboarding one university, you would potentially get hundreds/thousands of clients (the students).

Good luck

I am a mentor on Startups.com, a lecturer, and a startup lawyer. I've successfully helped over 400 entrepreneurs, startups and businesses and I would be happy to help you. After scheduling a call, please send me some background information and the 2 main questions you want answered so that I can prepare in advance (to give you maximum value for your money). My reviews: https://clarity.fm/assafben-david