Depending what part of San Diego you are going to work, another possibility would be Cardiff, Encinitas, Solana Beach, etc. Problem is some of these towns have less rentals, or else the owner makes more money renting for horse season, and isn’t looking for long term renters.

However craigslist is a good resource. There are still rentals in these towns, and it might split your commute. Del Mar or Carmel Valley are also options.