Do small companies (5 to 10 users) with cloud platforms and high-speed Internet connections require a physical server to save documents and perform network management? Why?
Storage - I think they could use any decent cloud service (Dropbox, OneDrive, Google Drive, Box, etç.).
Emails - Keep them in the cloud.
Printers - Connect to network and run the CD on your computer.
Antivirus - Use a common PC to deploy or control throughout the network.
ERP - Put it on the cloud . (Odoo, or any other.)
So.... Do they need to have a local server at all ?