The bob is universally appealing. There are many different versions of it. Shoulder length hair is flattering to most face shapes and longer layers can give you a subtle change.
I am assuming the question should read "shoulder" length. A layered shaggy cut is really popular
right now, leaving the crown area longer with the bangs cut at an angle. A straight "bob" cut with
bangs never goes out of style. This length of hair can easily be worn up.
The side swept bang with layers that land around shoulder length have been very popular the last few years. Also pairing the layers with a blunt bang works for some.
Some good shoulder length hair styles is a french braid,a french roll bun,a high pony with a big hairband,a clucher with your hair pulled back,a back comb pin combed from front to back from the centre.