simple https://www.emergencycoin.net As example for social work is donation of coins to a youth group of a german technical helping organisation: https://www.facebook.com/ThwJugendStelleWinsen/ Its mostly in german but you find post on 9. of Mai 2018. Many organisations have in their rules not offical thank donators, so its a bit compilated to publish.
it is not difficult to form a team responsible for the activities of your social organization to always publish it. I think it will be more interesting and trusted, so there are many people who might want to join your activities.