[Orinocco]

Digital Candle is a great service for providing free tech advice to charities: https://www.digitalcandle.org.uk/

You can sign up for a one hour call with a charity which has a problem/needs advice. There's no committment after that but you can get more involved with that charity if you like/it's appropriate

I've volunteered with it a few times, all felt productive/ hopefully helpful to the charities involved