what about just directly helping people in your local area, your neighborhood, your city? it may not change the world, but for these people it would mean a lot. i am living in Europe, currently there are refugees from the Ukraine coming to my country, so I help them to get registered, to find housing, to get some basic stuff, and just feel welcome in the new country. that may not sound like a lot, but if you're fleeing from the war and have lost everything, even a little bit counts.