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It’s expensive but I can tell you that Gibson makes a studio series called the G-45 that has a shallow body
If you’re having trouble finding a guitar that fits you it’s definitely a good idea but there is no one size. Any size person can play any size guitar. You will see a little tiny Loretta Lynn playing a jumbo size which is the biggest they make or a full grown man playing a single o-18. Most professionals choose a guitar size foe the different tones they make. Bigger = louder plus more bass. Smaller = more distinct note separation.
When I first started playing my guitar would leave a big red crease across my chest under my right nipple. I don’t know if I just figured out a better posture or just got used to it but now it doesn’t bother me at all and doesn’t leave any sort of mark. I guess I used a hunch over the guitar trying to look down and see what I was doing but now I don’t really need to do that anymore.