Yeah, there is https://chuffed.org/ But I also donate directly to the paypal of some people, like Mohammed (aka Uncle Tito, a very kind dude that dresses as clown and tries to provide joyful childhood experiences to children experiencing extreme trauma there in Gaza).

But would be very nice to have a way to donate using Bitcoin. I've emailed Chuffed, to see if they are open to accept Bitcoin, and how can I help, no anwser yet.