There's actually an entire field called Effective Altruism [1] that's dedicated to researching which charities put donations to good use - and there are quite a few of them [2]

Also, overheads like executive bonuses don't _necessarily_ mean that the charity is ineffective [3]

[1] https://www.effectivealtruism.org/

[2] https://www.givewell.org/charities/top-charities

[3] https://www.givingwhatwecan.org/choosing-a-charity/#a-note-a...