Try chin-length or longer styles with a side part, swept-forward layers and a wispy fringe. A chin length bob is great, as are color accents at chin level. You can wear shorter styles if you leave weight in the nape area.
Avoid short, full styles that emphasize upper face, height and color accents at the crown, and severe, slicked back looks. Short full styles with tapered necklines that emphasize the upper face will make you look top heavy. Just remember if you have a dramatic heart shape face, you have great cheekbones to emphasize!