I want to volunteer again

I used to volunteer when I was younger, in school and after school. But something changed. Life somehow got busy... and just when I thought it was busy, it got busier. Next thing I knew I was working at a job I thought I loved but feeling unfulfilled. So, after much deliberation, plus with other work factors to contribute to the decision, I decided to resign. I remembered a quote I used to adore from Guillaume Apollinaire, 

"Come to the edge
He said. They said: We are afraid.
Come to the edge
He said. They came.
He pushed them, and
they flew..."  

I didn't have a plan, but I knew that I wanted to add depth and meaning to my life. Going back to where I found this before, I decided I needed to start volunteering somehow again. But doing what and how? I've thought of the things I've done in the past () and I think I want to work with children. But how and in what capacity - teacher, activities leader sorts of roles appeal most, but we'll see.