I've been looking for them too... There is definitely not the full spectrum of sushi you find in LA. The lower end (commodity rolls and lunch sets) are the vast majority of places, and you can find some slightly nicer 'house special roll' sorts of shops, but it's mostly white tuna (whatever it is), salmon (which is almost all wild and usually excellent), and shrimp/krab/avo sorts of stuff.
There IS a high end omakase scene, though I have yet to indulge myself in any of it (I've been too busy trying ramen).
but here's a nice list to get you started:
According to my associate producer, one of the high muckety-mucks was visiting and they went to Tojo's and he said it was fabulous, but I have no idea what 'fabulous' counts for in his world, so ymmv.