Upcoming book tours for authors you think are worth seeing?

I happened across Veronica Roth's blog post via GoodReads about a book tour for her upcoming book Seek the Traitor's Son. She'll be visiting various places around the US and UK. I can't say I've ever really thought about going to a book signing or a book tour, but recently I've been thinking it would be a nice change of pace to go to an event like this and support an author or other creative this way. Roth is not first on my list, but it did get me thinking about how to find other events and hopefully get my hands on some cool merch as well.

Do you know of any creatives (but mostly authors, since this is ~books) who are doing tours this year? How do you keep informed about dates of book tours and festivals?