Go to your local public library, preferably the smallest branch of it if it has branches, and ask the director and especially the children's librarians. They will know exactly what is most needed. I live in a rural county which has only one public library and you wouldn't believe the good you can do for your local population by helping there.
I was floored when I saw how many locals and their children, by extension, improve their lot via our little library, and how many kids get a boost there. It doesn't have to be a big name charity to do real good in the world, just in case you were thinking in this direction.
I have a mantra that I have spouted for years... "If I eat right, I feel right. If I feel right, I exercise right. If I exercise right, I think right. If I think right, I eat right..." Phil-SC