Comment by walleeee

consider first determining exactly what kind of impact you would like your work to have

looking for something "positive" without principled and reasoned motivation to prefer any particular outcome is a great way to get yourself taken advantage of, or to make yourself a cog in a machine that takes advantage of others

do you know how you want to change the world? if so, go work on it. if you're not sure how to achieve a well defined objective, then read, study, try things, and talk to people until you have a better idea. if your objective is vague, think about it until it's not

if you want something "positive" but don't really know what, the first step is emphatically not to go join somebody else's movement, the first step is to determine precisely what positive means to you, then reason from first principles how to get there