Back muscle unbalanced

[Bandiot]

Hi there guys,

Been a while since I been on here. I was wondering if anyone can give some advice on how to balance my right side? My right side seems alot smaller compared to my left and recently I have been having problems with my right shoulder.

I went to see a physio and they advised some moves to do at home but ultimately I feel I need to work out and build up the right side of my back.

I did some research myself and feel it's my lats and teres major and minor muscles?

Thank you and I appreciate the feedback.