I would say that World of Disney would be best, but you may find some attraction specific magnets at the various nearby gift shops. I have been collecting magnets a lot on recent trips, and did get some last time I was at DLR, though that was nearly 2 years ago now. I know I got a Webslingers one on Avengers campus. If you go to World of Disney, look on spinner racks near the registers - at least, that's where I remember them being. I got a nice, big "Disney 100" one on my last trip too, and that's where they were.