Bookmark
San Jose is geographically disadvantaged when it comes to blackjack. The closest Indian casino is River Rock, north of Santa Rosa. That's about a 2+ hour drive, and their 6-deck game is deplorable. They cut off 2 decks, and cap your bet at 5x your previous bet. Not to mention they don't have a license to serve alcohol. Yeah, a casino in the heart of wine country that can't serve wine.
There's no relief to the south, either. The closest spot in this direction is a place just north of Santa Barbara, which, last I checked, is very much Southern California.
Heading east, there are a number of casinos, but most aren't worth playing. Cache Creek has mediocre multi-deck games, and their SD is 6:5. Thunder Valley is all CSMs, the last time I checked CBJN. Jackson Rancheria and Black Oak suffer the same symptoms as Cache Creek.
The few bright spots are unfortunately a long drive from the South Bay. Twin Pine in Middletown has a decent 6-deck game with good penetration - the deal just into the 6th deck. And there's a spot on the north shore of Clear Lake called Robinson Rancheria with the only good single deck game (DOA, H17) in the region. Of course, both of these spots are about 3 hours by car, while Tahoe and Reno are 3+ hours.
After writing all this, I just realized you are primarily looking for good SD games. Sorry, there isn't much. Outside of the game at Robinson Rancheria, there's nothing really. My suggestion: fly to Vegas and head to the El Cortez. Not only do they offer a great SD game, but they'll also give you a free primer in Casino Heat 101.