Microsoft Teams is a chat-based collaboration tool that's part of Office 365. Microsoft Teams enables remote, global and dispersed teams to work together and collaborate through a common workspace, team chat, one-on-one chat, document collaboration and more. It is a hub for teamwork that integrates all the people, content, and tools your team needs to be more engaged and effective.
Microsoft Teams Introduction with OneDrive
Microsoft Teams Intermediate
Microsoft Teams Advanced
Microsoft Dataverse for Teams
700: MS-700: Managing Microsoft Teams for Administrators