You’d have to get a pretty large one to make pizza, but they’re reasonably priced. The Jingdong links above are exactly what you’re looking for. One great thing about Jingdong is that you can have them delivered to you (same day if I’m not mistaken) and pay with cash on arrival, which beats the Zhifubao hassle of Taobao.
One thing I’ve noticed is that in China, toaster ovens seem to be called “ovens” (there is no distinction between the two).
You can do a lot with a toaster oven, though. Larry at Natooke makes delicious banana bread regularly with a small toaster oven that sits in the shop. Great thing to have, especially in the winter.