Here are some links to Wikipedia pages my students have authored in the past. I wrote about some frustrations with Wikipedia on my blog a few years ago, but I realized it would be better to have a centralized place to update about the pages that have made it! I've done the assignment three times now, once as a "rogue professor" and twice using the Wikipedia Education dashboard. I highly highly recommend using the dashboard. For more advice, see this presentation I gave at JSM 2020.