I would go with tax preparation software. Barring that, OCR, and then, internet radio. https://www.ibisworld.com/united-states/industry-trends/industries-highe

I would go with tax preparation software. Barring that, OCR, and then, internet radio. https://www.ibisworld.com/united-states/industry-trends/industries-highest-profit-margin/ https://www.ibisworld.com/united-states/industry-trends/indu... Profit is the most reliable signal of what people need. If they're paying extra, it means they get even more value out of it. Not allowing profit is when economies fall.