I have the same goddamn problem.  I found some good dress shirts, and then took them to a tailor to get darted so they fit me around the waist.   T-shirts... I just have to pray for a miracle with the fit.    But yes.  The fucking fat shits aren't going to look good no matter what they wear (as long as they fucking disguise their disgusting bodies from our collective view) so why fucking bother!  Make human clothes for humans!