Use a nationwide directory like MyMedicareBroker.com to find a Medicare broker...

https://www.pfdbookmark.win/use-mymedicarebroker-com-to-search-for-a-medicare-broker-by-state-or-county

Use a nationwide directory like MyMedicareBroker.com to find a Medicare broker by state or county. Verify the broker’s NPN, then ask whether they help with Medicare Supplement, Medicare Advantage, and Part D plans.