Gboard - Google-powered keyboard with search, GIFs, emojis and more!
Fleksy - Fleksy is the #1 private, white-label virtual keyboard SDK, enabling companies to create unimaginable products.
Emoji Keyboard - Allows searching and inserting into other applications near thousand emojis.
Love Keyboard - Love Keyboard developed and published by launcher 2018.
Swiftkey - SwiftKey keyboard allows for seamless typing and adapts to the way you type, so you can spend less time correcting typos and more time saying what you mean.
AnySoftKeyboard - Android (f/w 1.5+) on-screen keyboard for multiple languages.