Where can I ask Reddit to help me find examples of modern propaganda, astroturfing, bot posts, polarizing and dehumanizing content? (Teacher request)

Hello.

I am a high school teacher of history and English in Norway.
Currently I am attempting to adapt my curriculum to the issue how algorithmic content contributes to polarization, shifting values, changes in democratic participation, disinformation and misinformation. As such, I'd like to ask Reddit to help me find rage-bait, astroturfing and content that is polarizing, dehumanizing, politically changed, misleading or otherwise relevant to my goal.

I am interested in a wide range of content targeted at different groups (teenage boys and girls with different cultural backgrounds and interests); content which has varying effects on their audience (shaping attitudes towards body image, employment, politics, minorities, institutions, fellow countrymen, etc.) and content which appears on different platforms (YouTube, TikTok, Instagram, Reddit, X, etc.) I particularly appreciate a selection of content that is wide enough to demonstrate to my students how all groups are vulnerable to the effects of algorithmic bias.

I think facing these issues is nessecary to help innoculate my students, but being trapped in my own bubble, I struggle finding great examples that cover all these perspectives - particularly the perspectives that I personally disagree with.

What subreddit may be able to assist me in this? Grateful for any suggestions.