While every Rancho Santa Fe resident gets a few "local" newspapers delivered to their mailboxes, they are of varying quality, and generally don't cover truly local issues very well.
I recommend following the RSF Post to keep up to date on local issues relevant to residents in the Rancho Santa Fe Covenant HOA. Unlike many HOAs, our Association Board tends to be pretty active, affecting residents in various ways, good and bad. In addition, the RSF Post hosts a discussion forum where residents can sound off. You can opt into the mailing list to be notified of every article it publishes (typically one email per week).