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.
Habit List - Create good habits and break bad ones with the app that keeps you focused.
Notion - All-in-one workspace. One tool for your whole team. Write, plan, and get organized.
Momentum - Agile goal and performance management
Slack - A messaging app for teams who see through the Earth!
Habitica - Habitica is a free habit building and productivity application.