There are no articles that I know of that cover the benefits of overcoming social anxiety. However, there are <em>plenty</em> of articles that cover <em>how </em>to overcome social anxiety.
Social anxiety is a big obstacle for many, including myself. Benefits of overcoming this would be:
Having the confidence to make more friends
Having the confidence to reach out and ask for help
Having the confidence to answer people if they need help
Having confidence.
The big thing about social anxiety is that it ruins our confidence, so overcoming this obstacle would definitely help with that.