One way is to see if there are any members near you that can recommend someone. You may want to include your location in the subject line so they will know where you are at.
Another way is to search for a feline only vet. You can search for vets in your area here
https://catvets.com/ . It's no guarantee, but since they only treat cats, they may be more familiar with FD.
The other way is to create a list of questions and call vets in your area. You may need to schedule a consultation appointment, but if they know you are looking for a new vet, will probably be glad to set up a time when you can talk to the vet.