Make investment decisions with the help of social sentiment

Hi guys, I have an idea that I want to evaluate in the market. Actually, some universities and professors have already done some research in that area.

The idea is to build an API that measures volumes and sentiment of tweets for a company hashtag to understand the social sentiment towards that company and provide this as an indicator to make investment decisions. You would be able to see how the sentiment has changed in the last 24hrs, 7 days or month and by comparing it to the stock chart, find out if there are any interrelations (example gamestop, tilray, etc.).

I imagine this to be very useful to find trending stocks or sudden changes in the market.

Now, my main problem is, how can I find out if someone would want to buy it and integrate it in their website or app? And how can I find people in that industry who I could interview to learn more about their requirements? How do you usually evaluate your ideas? Are there any best practices?

Thanks a lot for your help!