Book recommendations like Percy Jackson, Cirque du Freak, etc?

I also loved the books by Rick Riordan as you can tell by my name :) You should try The Maze Runner as I read this book and I really loved it, it's about a group of boys who have been shut away in their own little place but they have no memories and outside is a maze and they need to work it out to leave before they die. It's a very good book. the main person, Thomas is just like Percy in a way, he is very likeable