The Selection by Kiera Cass
Have you read The Selection yet? I think it reads like a cross between a reality TV dating show and the royal wedding. When the prince needs to find a wife, 35 young women are selected to live with him in the palace. They are sent home as he weeds them out until only one woman remains--the one who will become Queen. All this is broadcast on TV and the families of the women are rewarded depending on how far the girls make it in the competition.
The Selection was optioned for a TV show right when it came out, and now the CW has approved a script for the pilot. I'm excited to see how this turns out because it was such a fun book! Here's a trailer for the book, which may give you some ideas for what the show could look like:
While we wait for the show, get yourself on the hold list for the sequel, The Elite, which comes out April 23.