Nikatime - A Slackbot that keeps track of what your team is doing so you don't have to.
Evernote - Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.
Exstora - Built-in quick note: save ideas, contacts, interesting facts
Standard Notes - A safe place for your notes, thoughts, and life's work
OneNote Online - OneNote Online, part of Office Online, is the online version of Microsoft OneNote.
Joplin - Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. The notes are searchable, tagged and modified either from the applications directly or from your own text editor.