Since you asked for a surprise, I do have someone in mind, but because I don't have her Amiibo with me, I'll have to request for her from my treasure island, which means you might have to wait up to an hour or more. Would you be willing to wait? If not, I could always try to look for another villager with an Amiibo card, which will be faster.
On an semi-unrelated side note, tomorrow, I'll be getting 50 "Welcome Amiibo" cards, which will contain villagers not available in the Series 1-4 cards, so you guys will have more selections by then (without going through the tedious treasure island process).