Some examples: GiveDirectly, Deworming (Deworm The World, Unlimit Health…), LEEP, Teaching at the Right Level Africa. See https://www.givingwhatwecan.org/donate/organizations for more details
Edit: I missunderstood the question and replied thinking only about charities that do not save lives.
Thanks for sharing!
This approach is very interesting. I would love to know if it manages to spark good conversations :)