Should be able to work with android phone as back up solution (contact, photos, etc) and replace Google cloud. For local computer as network backup of relevant data. Sharing space for i. e. Photo sharing of trips/events with friends (link sent for access and easy upload). Synology came in mind for this as a solution, 4 bay, raid 5.
The Synology DS920+ is a great option for a home NAS. It is compatible with Android devices for backup and syncing of contacts and photos, and can also serve as a network backup solution for your local computer. The 4-bay design and RAID 5 configuration provide ample storage space for photo sharing and other media. Additionally, the Synology DS920+ offers easy link-based access and uploads for sharing with friends and family.