I have used, Kik, Snapchat, Telegram, Botim, Signal, Whatsapp, Line, Discord, Ventrilo when it was a thing, Skype, Zangi, Google chat, facebook messenger, and email. each has their own merits.
@iamonfire696 I never tried Whatsapp. Is it less obnoxious than Snapchat? I think there's way too many notifications and I don't like the quick add feature