What is the most logical next event?

How to start a volunteering club at your school
Decide whether you really want to start the club.
Narrow down your idea until you have a focused, specific mission. For example, rather than being a general volunteering club, start a club to volunteer once a week at a certain soup kitchen in your community.
Ask around and see what your fellow students think of your idea, and whether or not they would join. Once you have strong enough support from your friends and fellow students, you're ready to go.