Confluence - Confluence is content collaboration software that changes how modern teams work
Discourse - Discourse is an open source discussion platform built for the next decade of the Internet.
Sharepoint Online - SharePoint is a secure place to store, organize, share, and access information from almost any device.
Notion - All-in-one workspace. One tool for your whole team. Write, plan, and get organized.
Amazon WorkSpaces - Amazon WorkSpaces is a managed desktop computing service in the cloud.
Mightybell - Build a community and a business on mobile