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

https://rileysexcellentnews.readspirex.com/posts/how-do-i-find-a-broker-who-understands-both-healthcare-and-budget-needs

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