I've done volunteering at a charity shop, a castle and at a zoo The zoo was probably the most fun to be honest! Look on websites for volunteering opportunities around you, that's how I found mine! There were pages and pages of different places I could go. You can do admin, fundraising, youth work etc.. I did mine over the summer/weekends
I went on VolunteeringWales for mine and there was actually so much, i applied to about 10 ;P