I suggest that every man should read this article for #InternationalWomensDay: https://medium.com/@nkkl/ride-like-a-girl-1d5524e25d3a
I was already kind of interested in feminism when I first read it, but it was this article that made something click in my head. It immediately made the whole topic so much relatable and understandable to me, and it inspired me to check out other women's experiences. I hope it has the same effect to you.
And then read this list of actions you can take to do your part: https://www.xojane.com/issues/feminism-men-practical-steps