Just go ahead and apply to the companies in the list below. A lot of them just require factual information like your name, address etc., so you can't really mess it up. I would do a sample narrative of a recent shopping experience and then just cut and paste it into the apps that require it. However, before you actually go and do any shops you really want to do some serious reading on this forum. I think a lot of important information is in the new shopper forum.