Mayan EDMS - Document management without the headaches.
Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.
MS SharePoint - Share, organize, and discover information with Microsoft SharePoint. Learn about SharePoint Online, OneDrive for Business, and Apps for SharePoint
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.
SeedDMS - SeedDMS is an open source document management system based on PHP and MySQL.
RingCentral Video - Live life unlimited. Free video meetings and team messaging in one app that works the way you do.