Taskade - Make lists, organize your thoughts, and be inspired to get things done. Taskade is a collaborative space for your tasks.
Due.work - Simplify your work, to-do's and communications
Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Dropbox Paper - A collaborative document-editing service
Rivers IM - Simple, fast & secure team collaboration platform
Notion - All-in-one workspace. One tool for your whole team. Write, plan, and get organized.