One word: FEMINISM.
But in more detail:
Good father figures.
Mothers who model independent, assertive behaviour.
Mothers who model close, supportive, trusting relationships with women. Because she needs to have a support group of women who'll back her up throughout her life.
Having single, successful, confident older women in her life. My unmarried aunts (one of whom was director of a famous-name company) were an inspiration to me. They showed me I didn't need a man.
Intervening if you see your daughter being trained to be a people-pleaser.
Refusing to promote a relationship/ marriage as being the most important thing your daughter can hope to achieve.
Talking to her about 'love' for what it is. A chemical rush resulting from evolutionary biology, designed to get young healthy people having sex and bonding long enough to continuing the human race. Talk about how the intensity of feeling burns out over time leaving you, if you're lucky, bonded with a decent man and if you're unlucky, bonded with an abuser.
Teaching her, at an appropriate age, about her bodily and sexual autonomy and that it's absolutely fine to decide her own boundaries.
Introducing her to feminism, so she understands how women are held back and down and undervalued throughout society.
Ensuring that the men in the household understand all this, too.
Teaching her that her value lies in far more than her looks and that pairing with a man who only appreciates her looks is a recipe for disaster.
Speaking up in front of her when women are shown being abused, coerced and exploited in films and on TV.
Supporting her in education and to find and qualify for a career that will enable her to live independently without reliance on a man.
Teaching her the same life skills — driving, changing a bike tyre, changing a light bulb, small DIY tasks — that you would teach boys. Don't assume she'll have a man around to do that sort of thing for her.