A successful fundraising strategy for any nonprofit—large and small—begins with a Culture of Philanthropy: https://institute.blackbaud.com/asset/npexperts-2017-fundraising-matters-building-a-culture-of-philanthropy/

The Third Wave Fund aims to boost the power of existing grassroots advocacy groupsthrough its philanthropy: https://www.fastcompany.com/40424808/the-third-wave-fund-is-funding-the-people-usually-overlooked-by-big-philanthropy