I check pinpics. If you know you want to collect a certain character or movie, just type the name into the search field and see what pop ups. You usually get all kinds of pins from oldest to newest (or at least when they were put into the gallery) and wide range. You'll see which are Disney Auctions, Disney Shopping, Europe / Paris, UK, Tokyo, Hong Kong, WDW and DLR, although the gallery isn't fully updated for all Tokyo / Hong Kong / Asian pins because there aren't as many pinpics (or even DPF) members who live or frequently visit those parks. If you collect popular characters, you'll find a large range of pins, and you'll be able to pick what pins you like the best and decide if those are your "grails" or not.