Marina in Cupertino (and likely other branches also) is a good source of shaoxiao/ huadiao wines. I saw a number of mid-range and upper-end products on a recent visit that I don’t see in the 99 Ranch Mountain View store.
Pagoda: 18 year Huadiao $32.99 / 500ml
Kuai Ji Shan: 20 year Shaoxing $36.99 / 500 ml
Pagoda: 20 year Shaoxing $22.99 / 500 ml
Pagoda: 10 year Shaoxing $13.99-$15.99 / 500 ml
Pagoda: 8 year Huadiao $4.99? in glass bottle
Some drunken chicken was made with the last bottle. Quite enjoyable the bitter complexity.