Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Momentum - Agile goal and performance management
Taskful - Deadlines, meet your match.
Minimo - An elegant, simplified new tab page
Taskade - Make lists, organize your thoughts, and be inspired to get things done. Taskade is a collaborative space for your tasks.
A5 - Takes notes in your browser. Elegant & simple.