Have volunteered in hospitals. You either volunteer for the auxiliary or with the program that allows young people to volunteer in hospitals.
Have volunteer during professional bicycle races. I knew the race was coming to my town and watched for bulletins,
Have volunteer for various sporting events.
You can volunteer for usher at the local theater. Contact the theater.
You can volunteer to tutor English as a second language at the library,
Am volunteering at a concert this week. I was asked because we have volunteered with the promoter of the concert many time.
Schools need volunteers.
An acquaintance volunteered her time working for the LA district attorney just out of law school because she couldn't get a job.
There are tons of opportunities.