My daughter has been using this book and it's been going really well:
Trick Training for Horses: Fun Ways to Engage, Challenge, and Bond with Your Horse
This is more about "tricks" than about just having your horse follow you. If you want your horse to follow you, just keep cookies in your pocket LOL. But it lays a good foundation for training your horse.
For bitless / bridleless, I liked this book:
Riding Free: Bitless, Bridleless or Bareback
They spent a LONG time going over groundwork and making sure your horse understood cues before actually getting to the neck circle riding stuff. Which is as it should be -- important to get a solid foundation first.
"Saddle fit -- it's a no brainer!"" - random person