So what exactly are you looking for? If Google Keep is what you're looking for, then use Google Keep. If you want to share to-do lists, then use Asana or Trel

So what exactly are you looking for? If Google Keep is what you're looking for, then use Google Keep. If you want to share to-do lists, then use Asana or Trello. If you want to manage tasks, I'd recommend http://clubhouse.io http://clubhouse.io It's hard to say what would fit your needs without saying what you need or want from a product other than "project management".