Shoot. Just from a quick Google search, it appears that a foreign speech therapist would only be able to offer services if they were credentialed in Bulgaria, which is unlikely. I could be wrong, but regardless I likely don’t have a rec for you after all. I’m not surprised you didn’t like your previous speech therapy experience. Breathing and fluency shaping aren’t best practice, and it leaves clients pretty frustrated when it inevitably fails. When looking for a speech therapist, look for someone who advertises themselves as addressing the whole experience of stuttering. This means not just the stuttering itself, but one’s reactions to stuttering as well (thoughts, emotions, and avoidance behaviors). I hope this helps and that you can find someone good.