I found someone selling them on AliExpress, though at a high price point: https://www.aliexpress.com/item/4000990317952.html

If you don't mind a different style (clam shell), you can get them for significantly less: https://www.aliexpress.com/item/33025755888.html

I suspect both AliExpress listings are an order of magnitude more expensive than they can be purchased on Taobao, but then you have to A) find it on Taobao, and B) use a shipping agent in China to export it.

Found a US-based seller who has them for $3/each (min quantity 10): http://siliconkit.com/ocart/index.php?route=product/product&...

Ah, the model number is listed on the flashrom wiki: https://www.flashrom.org/Technology#SO8.2FSOIC8:_Small-Outli...

Edit: Here's the Taobao link: https://item.taobao.com/item.htm?id=576521466919