Welcome to the forums.
Without seeing a picture of you it would be hard to give you an idea for hairstyles but there are some sites you can get ideas from that deal with different hairstyles and face shapes.
http://www.hairfinder.com/celebrityhairstylest.htm
http://www.bosshairstyles.com/articl...face-shape.htm
http://www.makeoversolutions.com/
Also one thing to remember with hair that produces alot of oil, the more you wash the more it becomes oily has the scalp produces more oil to protect the hair and cuticle from drying out. Try using a dry shampoo instead of washing your hair everyday.