[Suggestions] web app to find a niche

Hi guys,

I'm a web developer and I thought maybe I can create an app that will automate the process of finding a niche or at least giving some insight:

• Create a blueprint that will run to check some metrics from ahrefs, sehmrush, GTrends, wikipedia...
• it will use sentiment analysis on social media (Are people talking positive, neutral, or negative about a subject, product you give?)

I don't know if it already existe but I like programming and marketing so I want to make something from it and gain more skills I thought about a cheap SaaS. Or maybe you would like to automate something else in your IM journey ?? If you're interested give your suggestions Ciaa