Being a left-handed guitarist is certainly nothing to be ashamed off. In fact the most famous guitarist of all time, Jimi Hendrix, was a left hand guitar player. Though that said, he did play a right-handed fender electric guitar and just stringed it upside down!
These days most styles and types of guitar will come in a left hand option. Whether it is a classical, steel string or bass guitar that you are looking for, with a bit of hunting the left hand version can be found.