What are some of the best ways for low income people to pay off credit card debt?

First step is to stop spending money and go on a tight budget, don’t buy anything that you don’t need (no clothes, no candy, no entertainment, etc.). In other words spend less than you make so all the extra money you make can be for your debt only.
You should stop using the credit card and pay more than the minimum, always, and do it on time, late fees will hurt you even more.