Check out the charters at the bottom of the page, as Skein said.
I would imagine there are very few that will be targeting salmon that early though. The season opens on the 15th but it'll be pretty scattered.
Rockfish will be hot and heavy though. If you want the best chance possible to catch salmon I'd wait till July/August timeframe. In fact, I'm sure if you watch this board you'll find yourself an open seat with one of the Dogs.
Good luck!