https://www.charitynavigator.org is the one I’ve made use of when deciding where to park my donations. Executive salaries, funding sources and end use data can often be found here from the more forthcoming associations
https://www.canada.ca/en/revenue-age...a-charity.html
Find an association which (claims to) align with your ideals
Track down where they spend the money, and how effective they are at doing so. I may be mistaken but I believe registered charities are bound by law to make many of their financial records available for the public
None of them are perfect but there is a wide gap between the “boots on the ground” charities and the “we pay subcontractors to do our dirty work” associations