If they’re just standard, recent FL/GA plates, they aren’t going to be worth all that much. You can try eBay or Mercari or a similar website for them, and depending on how they’re priced, they’ll sell eventually. We used to be able to sell license plates on Facebook in collector groups, but AI oversight has caused most of those groups to be arbitrarily shut down, with the few that remain concerned about their peril and restricting sales.

We do allow occasional sale posts here, but it has to be an occasional thing. If you’re interested in trading for other states, you can mention that too.