Use a nationwide directory like MyMedicareBroker.com to search for a Medicare...

https://dibz.me/blog/how-to-pick-a-medicare-broker-if-you-travel-between-states-1283

Use a nationwide directory like MyMedicareBroker.com to search for a Medicare broker by state or county. Check the broker’s NPN and licensing, then ask which plans they support: Medicare Supplement, Medicare Advantage, and Part D options can vary.