Welcome! You can add photos in your Gallery and then someone else can post them here -- -or you can make more posts -- it only takes 10 to be able to post photos.
Without knowing exactly what year your bike is I'm going to guess that one of the Jim Blackburn aluminum rear racks would be appropriate for your bike -- fairly ubiquitous from the mid '70s onward for several decades, they're fairly common, inexpensive, and relatively sturdy.