What is the best and most flattering hair style for a round face with a bit of a chin,?

i have long hair well below shoulder length but need to change it without making my face look fat!What is the best and most flattering hair style for a round face with a bit of a chin,?
I've got a face pretty like yours. I have quite long hair with a side fringe. Maybe that would help?What is the best and most flattering hair style for a round face with a bit of a chin,?
A long bob, about a cm below chin level. Longer at the front than at the back.