How to find the right speech therapist?

How to find the right speech therapist? Hello, I have had a mild-moderate stammer on and off for my entire life. While this is upsetting and sometimes very frustrating, I try not to let it prevent me from living my best life. However, I want to professionally start working on improving my communication skills for the sake of my career. So really what I am looking for is a Communication Coach, or “Business Speaking Specialist”, something like that who knows how to work with a speech impediment. Maybe this is what all speech therapists do but I’m not really sure where to get started. The question is, how do I go about finding someone like this? Thank you in advance!