How to Preserve Physical Photos

Related question: what's the best way to digitize a collection of physical photos for personal use?

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?

After a family member died I took on the task of digitizing several laundry baskets of photo prints.

I bought an Epson ES-580 automated document feed scanner, and still am pleased whenever I use it. The workflow for digitizing them was: USB stick directly in the scanner, put ~200 same-size photos at a time in the feeder, press "Go" and it'd scan about 3 seconds per photo (at 600 DPI, closer to 1 at 300 DPI). While scanning I'd set up the next stack, and periodically copy everything from the USB stick to a NAS.

Incidentally I used to work in a film darkroom and have a bit of experience with negative and slide scanners. Even in the best cases, they're tedious and finicky. If you want to digitize a perfectly clean 35 mm and scale it up to poster size then perhaps it's worth the effort. If you want to just preserve memories, even a bad photo of a damaged 4x6 print can still mean a lot.