70% chance if your in Centurylink's territory they'll offer you 1 Gig for $65 a month (no contract, free modem, price for life, no BS fees) that you can sign up for here: https://www.centurylink.com/home/

If Frontier is your RBOC, they have 300Mbps for $50 iirc in 90% of the non-rural areas they serve. Check https://frontier.com/order-online/plan/package

Comcast is hot garbage, both the offerings I mention are fiber, and the gaps seem to be caused by poor enforcement of the franchise agreements in the relevant locality, eg: Frontier was supposed to have 100% fiber coverage in Kenmore a decade ago, but the city isn't consistently assessing them fines so there is no reason to meet the contract.

Seattle has no universal coverage mandate, but a complex customer income weighting metric to prevent redlining. IMO we negotiated a worse agreement than Kenmore: https://www.seattle.gov/tech/services/cable-service/cable-fr...