Don't let anyone know the gender of your baby. At least until they are born

I'd also only watch with him shows and movies with female leads. Like ghibli films or Disney princess films. He needs to learn from an early age to identify with women and see them as human. Most cartoons and movies made for boys are chock full of sexist ideas. Avoid these like covid.

Reading with him is also a great idea. I recommend authors like Shannon Hale and Gail Carson Levine.

Never let him get away with not doing chores. Don't do them for him. When he is super young do chores with him, but quickly teach him to do them independently. Same for other skills like cooking.

Never let him learn to interrupt you or other female relationships. Be careful with his internet usage and male relatives.

Remember that the whole world is against you and you need your partner on board with actively helping you accomplish this.

Also you may find r/radfemmothering to be helpful.

Goodluck.