Burnt Ridge ships most of their catalogue to California, and what it can’t send is also prohibited for any other out of state nursery. I have yet to find as much variety of
root stocks, scion
wood, varied sizes of given species to choose from (smaller is almost always better in the long run), and the prices are very good, especially buying by the 10 or 100x bundle. Peaceful Valley is also a good choice for the OP’s bioregion, but I have had graft failures and endemic diseases at least as likely, and much more frustrating, when buying much more expensive larger trees like what they and other reputable nurseries
sell. I’d go for small trees that are less transplant shocked, plant more densely, and thin to keep the best.