I ran into this problem recently for a family reunion where we wanted a slideshow of photos that were decades old. The best solution was to manually scan them using Google Photoscan which involves taking a 5 pictures of each photo with a phone and letting the app remove reflection, perform skew correction, crop, etc. This resulted in better photos than just using the phone's default camera software, but it still took 10+ seconds for each photo.
Does anyone have an recommendation for at home photoscanners that would allow me to drop a stack of photos into it and have it automatically scan them? I found various devices on Amazon that target this use case but they all have drawbacks like low resolution or excessive manual work. Has anyone done this with their family's old photos?