AnySoftKeyboard - Android (f/w 1.5+) on-screen keyboard for multiple languages.
Typewise - The next generation keyboard
Gboard - Google-powered keyboard with search, GIFs, emojis and more!
Drone Keyboard for Tello - A new way to control your Tello Drone
FlorisBoard - An open-source keyboard for Android.
Image Search Keyboard - Search Google Images right in your keyboard