I have a friend that has the same issue with you the only suit he fills out is one from Top Man (Top Shop), where they make ridiculously slim suits.
With that said, I don't think you'll ever get a nice high quality suit (talking RLPL, Isaia, Brioni, Kiton, Borrelli, etc.) that will fit you well. I'd suggest you bulk up, it's worth it!
With that said, I don't think you'll ever get a nice high quality suit (talking RLPL, Isaia, Brioni, Kiton, Borrelli, etc.) that will fit you well. I'd suggest you bulk up, it's worth it!





