This article is about how to get your large files off your main computer hard drive and onto some external network storage that is more reliable, longer-term, and doesn’t take up precious space on your laptop or desktop computer. Apple don’t make an external storage solution but I found Synology have some great devices.
Many businesses have a G-Suite account, Google give them to non for profit organisations for free. A G-suite account includes 30GB of Google Drive space free to each user. It also has a clever permission system where certain folders can be shared with members of teams. So you can set up various teams, put people in those teams, and any files placed in a folder for that team will be automatically shared with the users of that team.