There is a pretty decent quora thread about this: <a href="https://www.quora.com/What-tools-can-I-use-to-create-a-guided-tour-walkthrough-of-my-website" rel="nofollow">https://www.quora.com/What-tools-can-I-use-to-create-a-guide...</a>
Appcues just released v2.0 of their product which looks pretty nice <a href="https://www.appcues.com/" rel="nofollow">https://www.appcues.com/</a><p>Loads of excellent posts on their blog aswell