so I see 3 schools Id recommend

Gracie Morumbi right in Thousand Oaks
ZR team in Westlake
Paragon in Agoura

So depending on where you live/work. Morumbi is the closest to the actual Zip.
They have a good lineage through the Renzo/Ryan Gracie line and the instructor there is legit. Looks like they have a huge facility, but I dont see their schedule posted

http://www.graciejiujitsufabioleopoldo.com/


ZR team is a well known team but the instructor is a brown belt. He has good credentials listed, but otherwise I dont know him.
http://www.zrwestlake.com/
Also a really limited schedule also


Paragon is a really well known team in the Valley and up the Central Coast. The main school is in Santa Barbara and I believe thats where Paul Walker trained. Theyve also produced a couple of the sports stars at some point in Jeff Glover and Bill Cooper. The school in Agoura is an affiliate but the instructor there also has a good pedigree. I like that paragon in general is pretty laid back on the traditional martial arts aspects of things and if its nearby Id recommend checking it out.
What I didnt like about the site is their schedule is kind of limited. So that may give you less options to train

http://paragonbjjacademy.com/schedule/


If you can get to Northridge, one of the best competition schools in the area is there: Gracie Barra northridge

Let me know if you need more or if you work closer to another area