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.
Infinity - Infinity is a fully flexible work management platform where you can organize all your work, your way.
Focalboard - Focalboard is an open source, self-hosted alternative to Trello, Notion, and Asana.
Zenkit - Zenkit is the home you always wanted for your ideas, your projects, your business.
Teamflow - Feel like a team again with your own virtual office