How do you find a group to join to be guaranted a spot in the audience?

I assure there is no guarantee of getting on, no matter what group you are in. The only thing you can do is stand out to the producer during the brief group interview. People who stand out for interesting careers or just simply being very excited, have the best chance. But even that will not guarantee anything. I was called down and I think it is probably because my occupation is Sheepherder and I made sure that I yelled and screamed and jumped around more than anybody. Good Luck, because that is what it takes, no guarantees, sorry.