What would you suggest to do to a society where there are many poor people?

In a society where there are many poor people, the resources of the society itself are also scarce: the poor cannot pay large taxes. So the proposals must be cheap or they will not be fulfilled.
1. Affordable contraception and active promotion of contraception. Poor people often have many children, and this only makes their situation worse. Moreover, these children will also be poor when they grow up, because their parents cannot provide them with a decent education or teach them how to earn more.
2. Legalization of everything that is possible. Drugs, prostitution, weapons, juvenile labor. In a society where there are many poor people, all this already exists, but only criminal structures benefit from this. If such spheres of activity are decriminalized, then it will be possible to control them and keep them within reasonable limits, and possibly receive some kind of profit for the state treasury.
3. An analysis of the causes of poverty is needed. Whether it is the result of a natural disaster, or the traditional lack of education, or the inability to farm the land for legal reasons, or overpopulation, or something else. The answer will vary from country to country. And it is he who will tell you what you need to deal with in the first place.
4. Agree with neighboring countries on assistance with the introduction of advanced technologies in agriculture and production, depending on what specifically makes sense to do in this place. You will have to pay for such help, but it will give you a chance to escape from poverty.