The cities with fiber have one thing in common. Low cost real estate, low labor and/or easy terrain. Verizon stopped fiber expansion because it was costing $1500 per house when it started and then came down to $750 per house! The wireless business is much more profitable so they gave up on FTTH.
Following that premise, Louisville, KY, and Phoenix are next. Maybe San Jose because of tech inbreeding.
Only way fiber comes to high cost coastal cities is if they can charge a premium and pay city monopoly fees (like the cable companies today), which I don’t think is feasible anymore for general areas. It would work in Carmel Valley, etc, but politics would force fiber company to offer every place in the city, which would make it unworkable.
What is ridiculous is that new homes built after 2000 didn’t have options for fiber connections and purple water lines to each home.