The Gottman Referral Network (GRN) is the primary resource for couples worldwide who are seeking professional help from Gottman-trained therapists. You can search by location or therapist name to find a therapist with Gottman training.
The GRN allows therapists to specify information on their profile about what types of insurance they accept (for example, here is a screenshot below of what this looks like for a random therapist on the GRN):
