amphetype - Advanced typing practice program
typing.io - Typing.io is a typing tutor for programmers. Practice typing the hard-to-reach symbols in code.
Type Fu - Type Fu is an app that will teach you how to type fast. The right way. On Mac, Windows and Chrome OS.
Typing Bolt ⚡ - Your AI-powered personal typing tutor
TypeLit.io - Improve your typing by practicing on classic books such as Alice in Wonderland, Frankenstein, and The Art of War -- or get a monthly subscription and import your own EPUB, PDF, and TXT files.
KeyKey Typing Tutor for Mac - Hone your keyboard skills without the hassle