We use Synology NAS for work:

https://www.synology.com/en-global/dsm

e.g. https://www.amazon.com/dp/B0855LMP81?tag=obrorg-20&linkCode=ogi&th=1&psc=1

But they have bigger bays available for more scaling, if need be:

e.g. https://www.amazon.com/dp/B087Z34F3R?tag=p00935-20&ascsubtag=07HVyOcWhqaNwqMjbwfccRz

We also pay for their cloud/cloud backup service for peace of mind, it's not terribly expensive.

A local NAS might be nice, and they can run software like little computers.

https://www.amazon.com/Synology-DiskStation-DS220j-Diskless-2-bay/dp/B0855LMP81

https://play.google.com/store/apps/details?id=com.synology.moments&hl=en_US&gl=US