I'd serve fake news en-masse to low IQ people who click things to feel good about their own views. I'd also build a handful of websites (ideally as many as I can personally manage) to flood the Internet with fake news clickbait.
One site clones fox news. One clones news max. And so on, cloning many news sites, sports sites, any news site. Automated, massive scale content farming. Think of the websites recommended by Taboola but, realistically, a whole lot worse.