Monterey is tough, there is CG in marina but we typically go to Aptos or Capitola and stay at either New Brighton or Sea Cliff SB. Both book up in record speed, especially SeaCliff because it's full hookup ocean front.
Since we are going through all my favorites you might add Pismo Coast Village and Pismo SB North Beach CG to your list.
If the mountains are a consideration, you might look into Sequoia RV ranch in Three Rivers, CA. It's a nice old school full book CG about 20 min outside the Sequoia NP hwy 198 gate. Three Rivers is only ~2000' so no snow and out of the valley fog.
Check out Camp Edison at Shaver Lake and the CG along Basslake too. We frequent all these places.
All of this is a bit of a drive from AZ, but if you are looking at CA you might as well look at the Sierras as well as the Coast
2007 Chevy Duramax LMM/Allison
2012 Jay Flight 29QBH
2012 Jay Flight 26BH (Sold)