Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.
Sync.com - Sync. com offers a backup tool and a file sharing service, rolled into one.
Creativity 365 - Cross-device content creation suite
Zoho WorkDrive - File storage & content collaboration tool for modern teams
Microsoft Teams - Microsoft Teams provides the enterprise-level security, compliance and management features you expect from Office 365, including broad support for compliance standards, and eDiscovery and legal hold for channels, chats, and files.
kDrive - The most privacy-friendly online storage and file sync service. From 2 TB, hosted in Switzerland.