Hey Cody,
I think it is extremely admirable that you want to help out with such a noble cause. As the others have mentioned RAINN is a really great organization and I would suggest looking into being an online hotline volunteer for them because it's a great way to help out and you can volunteer around your schedule. If I'm not mistaken
HERE is a link for different rape and domestic violence support centers in your state. I wish you the best of luck in finding an organization to volunteer with or another way to help out. Remember every little bit you do counts so don't feel discouraged if you can't help the whole world. Another idea would be helping victims in a similar way you help out users here.
HERE is a forum website dedicated solely to helping victims of sexual assault. I'm sure you can find many people to help out there. Take care and good luck with everything.
Lots of love
<3 Mimi