Swallow the fucking framepill.
It is one of the most brutal pills to swallow.
Growing your deltoids can indeed help hide the problem, but it won't fix the root cause.
Narrow clavicles are a death sentence for anyones frame.
Long clavicles or death.
Ideal clavicles
Michael Phelps, American swimmer
Steve Reeves, American bodybuilder
What do you think do these individuals have in common?
They both have big ribcages and long clavicles.
There are specific exercises and habits you can adopt to widen your clavicles.
More about that in the exercise page.