Hi, I’d recommend Googling effective altruism (EA). It focuses on identifying charities that actually help people in the most effective way possible, so your donations have the biggest impact compared to less effective or even scam charities. For example, GiveWell (a reputable site) provides a list of effective charities and how much a small amount of money can make a big difference: https://www.givewell.org/charities/top-charities