Fabain, welcome to the Club
I don't live in S. Calif. now but used to. When I was there, I used Foothill Aircraft at Cable Airport for my annuals. Mike, (I think his last name is Heart, could be wrong though) a mechanic there, is quite thorough, maybe a little nit-picky but that can be a good thing. He found some things wrong with my plane that other mechanics had missed for years. He also owned, maybe still does, a Cessna 150. I am sure there are plenty of good mechanics around, and closer to KSNA, but he is one I would recommend.
Interesting side note, KSNA is where I found my plane when I bought it 26 years ago.
Good luck, .........Jay