I'd look into a document scanner for ease of use. They even have ones that auto loads, so no more waiting around. With that said, if you purchase a scanner, it probably already has proprietary OCR, and they have auto feeding ones for many documents. I foolishly bought one not knowing auto feeding was an option.
https://youtu.be/fi0ZhTFaW7w
I bought a brother 2 sided one since it had Linux drivers.