Hopefully, those who are especially knowledgeable about pitching and Southern California recruiting can chime in. I'll add my two cents, for what they're worth.
With your size and velocity, you have the chance to play for a lower level of college baseball. That said, you have a LOT of competition in Southern California. There are quite a few NAIA programs in California that you might want to contact and you might also want to look at jr. colleges outside of the major baseball hotbeds of California, Arizona, Texas, Florida, and Georgia. If you are willing to go out-of-state there may be several schools who are interested in you. The key is contacting them right now and arranging a tryout on their campus. Jr. colleges can do tryouts, so that would be a possibility.
As a matter of fact, I believe NAIA schools can hold tryouts also. They might not be held until early next summer, so you may need to be patient in order to find a place to play.
It all depends on how badly you want to play after high school.
Like I said, hopefully others will chime in with their recommendations.
Best wishes!