Anyone can look good in a choker, as long as you find one that comfortably fits your neck. If the choker is too tight, a tight fit can look evident while being uncomfortable to wear for extended periods. Your best option is to find an adjustable choker that you can customize to your needs.
These accessories are particularly great for women and men with short and long necks alike. You'll find that they help to elongate your neck by adding a little bit of dimension.
Also, they can help break up neck length as the embellishment can act as a separation.