On Sunday, April 21, 2019 at 4:32:21 PM UTC-7, wrote:
Hi,

Looking for a nice site to take soaring add on training in Ca.
Best area would be a little south close to SFO or LAX but not mandatory.
Have found these options so far,
Soaring Academy, Williams, Skylark.

Any suggestions?

Brgds,

Manuel Ortiz
ATP

All the mentioned operations are reputable good people- you will not go wrong.
As an other option however; if you are looking for a great club environment, the fastest growing soaring club in Southern California: https://cypresssoaring.org/
Small one time initiation fee, monthly dues as little as $55, low tow rates, free instructions and there are no additional costs involved...fly all you want.