Glendale is one of the largest and most commercially self-contained markets in the county, with a customer base that frequently searches, reads and buys in more than one language. Ignoring that is the single most common mistake agencies make here.
It is also a market where referral runs deep. Communities recommend within themselves, and a large share of search traffic is verification rather than discovery: someone was told about you and is checking whether you look real.
So the work splits. Discovery SEO wins the customer with no existing recommendation. Reputation work — profile, reviews, your own name — makes sure the referrals you already earn do not leak to a competitor with a better-looking result.