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.
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.
Boostnote - Boostnote is an open-source note-taking app.
Somnote - More often than not, note-taking is a pressing, off the cuff movement that requests a quick and productive approach.
Standard Notes - A safe place for your notes, thoughts, and life's work
Workflowy - A better way to organize your mind.