A few good fishing spots are the Sacramento River and the South Side Park in Sacramento California.
Here's the address to the 2 I mentioned.
Southside Park
2115 6th Street
Sacramento, CA
Sacramento River
Sutterville and I5
Sacramento, CA
Hope that helps you. You might look for others in the state of California too as I'm sure there's more good fishing spots outside Sacramento.
I haven't been to any others just yet though so I wouldn't know how good those were.