u/Complex_While6299

So I have created an app, it's a p2p marketplace of sorts. I am in the process of founding the company and I am currently looking into marketing strategies for attracting users, etc. I have technical knowledge regarding the use of social media, I understand basic marketing metrics, but I want to learn more about marketing strategies and methodologies for making a service popular and successful. Is there any online course/seminar/resource you would suggest? Most of the seminars I find online focus on stuff like "how to build a website", "how to use social media", etc. but I am more interested in learning more about strategy.