Another good option is Wire. It offers some fun messaging tricks, like the ability to doodle, share your location, send images, or record a video. The app also includes a chat bot, Anna, which offers somewhat useful answers to various questions about how to use the app.
You can optionally create an account with your phone number, which makes setup and account deletion easy. Wire is great for one-on-one chats if you would prefer conversations with someone be off the record. But it doesnt have the same type of social or group features found with some of the other offerings here.