Welcome to California.
You will be surprised how many techniques and gear work just as well out here.
Bass fishing in fresh and salt is similar in many regards. Bring your medium/ light setup to Alamitos and throw whatever jigs, lures, spinners you have......sand spotted and calico bass will hit it.
There are some more specific ways to target fish....Hali's on live bait, fly lining...others...
Do not spend money on gear before you know what to buy. Buy some used gear on here...you will save a bundle and get what is commonly used out here.
One thing that many west coast guys do is buy gear that is way way too big and heavy.
Have fun, post up.
