Notion - All-in-one workspace. One tool for your whole team. Write, plan, and get organized.
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.
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.
Slack - A messaging app for teams who see through the Earth!
Azure DevOps - Plan smarter, collaborate better, and ship faster with Azure DevOps Services, formerly known as Visual Studio Team Services. Get agile tools, CI/CD, and more.
Basecamp - A simple and elegant project management system.