Nah, this is the Inland Empire area more and there's really no Central "Gold" Coast forum, so my suggestion because it's definitely not in L.A. and is actually north of even Ventura County, but still south of the Bay Area, would be that you check out the several handles who've posted recent reviews for Santa Maria
AMP's and send Inbox Private Messages directly to those guys looking for further suggestions if their reviews don't point you in the right direction.
I clicked on the handles that had done some recent reviews when I sorted the Santa Maria reviews by recently reviewed dates and saw that there are several active handles based in or near Santa Maria, so they're likely going to be good resources for
AMP options. Also seems like Santa Maria has some good
AMP reviews lately, so I think you'll find some fun!