The latest fad in user onboarding has been adding a bot or pseudo-bot to chat and interact with users, called a “Conversational UI.” I say fad because it’s getting a lot of attention and attempts right now — it may well be a useful tool for the arsenal, but I’ll be happy when it’s out of vogue and is “just another tool.”
My grumbling aside, there’s some useful articles over at A List Apart about it, if you care to learn more: