How do I find those security jobs that pay over $20 an hour and you just sit there with a lot of free time?

Is it just luck of the draw? I see a lot of security people have jobs where they sit there and do nothing all shift besides play video games, YouTube, movies, etc. But on the other hand I see security jobs where they don't allow you to do that and you check people in all day or stand there all day. How do I filter out those security jobs for the easy ones?