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.
Gramps - Research, organize and share your family tree with Gramps genealogy software.
Notion - All-in-one workspace. One tool for your whole team. Write, plan, and get organized.
Ancestry - Discover your family history and start your family tree.
Slack - A messaging app for teams who see through the Earth!
MyHeritage - MyHeritage is a family-oriented social network service and genealogy website.