You guys are no help at all! LOL
Anyone else been to the site TV Tropes? I'm not sure how I stumbled onto this site, but it's one of those rabbit hole sites like Wikipedia and YouTube, where clicking on one thing leads to clicking on another, and before you know it, you've wasted an hour. Anyway, it's a site all about tropes (plot devices, cliches, etc.) in fiction - not just TV, but also movies, literature, etc. There is even a section devoted to fanfic, as I discovered the other day.
Here is an index of fanfic tropes:
https://tvtropes.org/pmwiki/pmwiki.php/Main/FanficTropes Each of these have a whole article explaining what it is and giving examples. I spent a lot of time clicking on the ones I was unfamiliar with (which was a lot of them), but once I realized what they were, I could think of examples I'd either read in stories or written in my own. I thought maybe this could generate some ideas for new questions.