I’m a retired speech therapist. You are much better off going with someone who is a speech therapist with a focus on stuttering. For most of us we have the vast majority of our experience in other areas of communication intervention including articulation, language, feeding, and swallowing. For any one you choose ask to speak to someone they have worked with specifically on stuttering. I’d bet this person would be unable to do that, not because they’re not a good therapist, but because of lack of experience . Also, you don’t need twice a week unless you have severe problems with dysfluency. In order to find a specialist you may need to go online and find someone who will work with you over the internet. You can check with ASHA, the American Speech Hearing Association, or other stuttering organizations for possible therapist. . As far as price it varies a lot depending on your local area and reputation. As another poster said-ask for a rough outline of how they approach therapy and if they will provide weekly “homework.” They should give you something to work on weekly/-even if it’s very informal, like order food 3x this week. Or read aloud for 5 minutes using x strategy. Therapy, unfortunately, does not follow a cookbook linear path, but a sense of how it will proceed is important. Lastly you could look online for SLP Stephan for his at home program which would be your cheapest option. It is not equivalent to a personal therapist but it is an alternative if needed