Industry Research for VCs

Good Day GPT, 
I am a beginner looking to understand more about B2B Payments. I have no experience. I am an investor who invests in early-stage startups. My job is to evaluate FinTech startups, and I want to understand everything about this industry, from different parts of it to the companies operating in it. I want to know the problems that exist, the companies that are solving it, and the opportunity that lies beyond. 

Make me a research guide to get the job done. Make sure it is concise and very informative. Work like a Super AI.