Have you tried Slots Million Casino? I have heard nothing but good stuff about them and all that they do. It might be worth a look see if you’re thinking about doing some trial and error with the sites out there.
I am thinking that they wanted free tournaments but I cannot say for certain. Usually, you have to be a great poker player to get into the free ones without having to put some sort of cash down. They usually invite you to them like a guest of honor, but usually you have to pay for the others!