You’d usually head to a physiatrist if you’re dealing with actual kyphosis... though that really depends on whether your curve is actually exaggerated. With kyphotic posture, your spine typically looks fine when you're bending forward (like when you're reaching for your toes), but things start looking a bit off once you try to stand up straight—assuming the issue is centered in your upper back, which I'm guessing is the case here. To fix that, you'd likely need to focus on strengthening those trunk extensors (your back muscles) while working on stretching out your abdominal muscles. Could you share a few more details about what you're experiencing?