There are an awful lot of Canon Selphy dye sub printers. The range over the years is huge - look at the compatible printer list on the ink & paper pack you bought.
Rather than going for a specific model, instead search around for "Canon Selphy" printers - as a general rule, the higher the model number, the newer and more featured it will be (built-in screen, wifi etc). Don't forget to check the model number against the compatibility list(!) and research it for reviews to see if it has the features you need.
I have a CP520 which is very basic (no screen, no card slots, no wifi etc. Just hook up to either camera or PC) but does the job of printing perfectly (apart from the slight issue I mentioned earlier but that's a specific fault and not generally present).