There are some methods that could work for poorer third world countries. One that has been going on for a long time already is the focus children going to university and working in a richer country and sending money back. This is a common story with many first gen immigrants but has problems - the main ones being brain drain, and the initial access to education. This method can lead to a few families getting out of severe poverty but doesn't help most people, and it doesn't help the development of the country since the individual is less likely to want to go back where the income is much lower. A different solution would be to reduce the number of children families have. Children cost a lot to raise (clothes, food, health, etc.), and aren't guaranteed to give back to the family (disabled, lazy, no jobs available, etc.). Better education on sexual health and childcare, and access to contraceptives would reduce child birth, allowing more investment on the fewer children they have.

Greater tax for those in higher brackets, more funding for education with stricter spending so it isn't just funnelled to individuals. Classes on better financial decisions in poorer districts, focus on hiring homeless/lower income individuals for government funded jobs that aren't popular.