There’s a subreddit called HFY which stands for “humanity, fuck yeah!” Which has little short stories about humanity being badass normally in a scifi setting in one way or another. https://old.reddit.com/r/HFY (I have Reddit blocked so can’t verify that’s the correct link)
The vast majority of the genre is utter trash, unfortunately. There are some true gems in the muck, but man are they hard to find. It turns out that most authors can't make humans seem cool without needing to make the aliens they encounter complete and utter morons.