Ideas or niche for AI business?

Hey everyone! I'm a mathematician specialized in AI and I'm currently looking to start an innovative business or project. I was wondering if anyone here has experience with processes, machines, sensors, or any other systems that generate some amount of data that, in your opinion, isn't being fully utilized or could benefit from AI. I’m particularly interested in niche and specific cases that might not be widely known by the general public. I'm asking you because I believe that the diverse professional experiences within this community may reveal hidden opportunities.

To give you some context:

• I have experience working on AI projects across different fields like healthcare, robotics, finance, and more. My specialization lies in forecasting. Mi current role is basically to make (or assist in making) strategic decisions based on the results of forecasting different events, metrics, indicators, ...
• I have no prior businesses, but I’m currently enrolled in a startup and business incubator program to help develop and refine my ideas.
• My plan is to apply to top incubators and accelerators if I can develop a decent business concept.
• I’m looking for an online business or project that requires relatively little capital to start, as I’m a "recent" graduate.
• I’m based in Spain, near the Mediterranean, though I'm not looking to center my business idea specifically around this.

Any specific suggestions or insights based on your professional experiences would be incredibly valuable. If you have experience with underutilized data-generating processes, machines, or sensors, or know of a niche application where AI could be transformative, I’d love to hear your thoughts!

Thanks so much!