When volunteering, it's always best to find your passion. My sister's was fostering and helping dogs find homes. Another person I know worked with the elderly. Still another ants to volunteer at a place that will allow her to work with pregnant teenagers as she was one once and no be helped her.
Me, when I get some time, probably in December, I am going to volunteer at a food distribution center or pantry as I feel bad I live not far from so many people who live on the streets and/or people that can't afford to feed themselves. That is my passion because of issues when I grew up as well as stories about my father doing without meals when he was growing up to make sure his sister's site.
What are you passionate about?