Confluence - Confluence is content collaboration software that changes how modern teams work
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
MS SharePoint - Share, organize, and discover information with Microsoft SharePoint. Learn about SharePoint Online, OneDrive for Business, and Apps for SharePoint
Nifty - Manage projects, work, and communications in one place.
Notion - All-in-one workspace. One tool for your whole team. Write, plan, and get organized.
Jira - The #1 software development tool used by agile teams. Jira Software is built for every member of your software team to plan, track, and release great software.