I'd love to say San Francisco since it has such a fun, tolerant atmosphere that a lot of furries would find ideal. The cost of living there makes it impossible for most furs to call it home, though. Expect to pay $1500 - 2000/month for a studio/1-bedroom apartment. Most furs in the bay area live in the south bay: San Jose, Santa Clara, Sunnyvale Palo Alto, etc...and most of the tech jobs are located in these areas as well.