the noble clothes and fur trimmed boot- in the east empire wearhouse
Fur trimmed cloak, fancy armgaurds and pleated shoes- thane bryling in solitude has them but sometimes she's marked as essential randomly

The Wedding Dress and Tavern Clothes are the best looking on the console. If you're on PC I think you can get Nocturnal's dress. Most of the other stuff is kinda' manly looking, but the Noble Clothes and Emperor's Robes look kinda' cute on females though.

Non-"Clothes":
The Nightingale Armor looks pretty good on females as well...plus, you don't have to worry about it making your butt look big because the cape hides it.

The DB stuff is form-fitting as well.