some local youth club may be able to use the stuff, or some other charity if you are prepared to give it away
Just don't be surprised if they're a little fussy about what they'll take, or simply not interested.
I used to repurpose old client PCs as web browsing and basic office productivity appliances for any charities and groups that wanted them, at no charge. I'd even drop them off and set them up for free.
But the times have changed...
I don't know how it is where you are, but the last few times I approached some of these groups, they declined the equipment - and then asked if I would be interested in making a financial contribution for them to buy NEW equipment instead.
Apparently when these guys say they're "going green" they mean cash.