Tenants and buyers search by submarket, never by "commercial real estate"
The head term is the least valuable phrase in your category, and the submarket and product-type phrases underneath it are where the qualified traffic lives.
A person typing "commercial real estate west palm beach" is usually a student, a licensee, or someone three months from doing anything. A person typing "flex space for lease Riviera Beach" or "downtown West Palm Beach office sublease" has a requirement and a deadline.
So the keyword map should be built out of the way requirements are actually described: product type, size band, submarket, and transaction side. Office, flex, industrial, retail, medical office, land. For lease and for sale. Each combination is a page or it is nothing.
Palm Beach County gives you more usable geography than a single city name. Northwood, Rosemary Square, the Okeechobee Business District, the airport corridor, Riviera Beach industrial, Palm Beach Lakes. Those are how brokers talk and how tenants search.
The ceiling on any one of these terms is low. The point is that twenty low-ceiling terms you own beat one head term you will never rank for.