This reminds me of the classic "It was all a bet?" trope you see too often in rom-coms, especially teen rom-coms. Why would someone be that heartless? If you are going to do some form of the "Ugly Duckling" story, why not have your "ugly" MC agree to the arrangement or have them fight for something more meaningful than prom king or queen?
Books about 16 year olds (or younger) saving the world. I usually find these types of stories predictable, boring, and unbelievable. I don't mind improbability in the correct context, in fact I use it all the time in my own writing (as a comics creator). However, the '16 year old hero' stories almost always want their readers to take the book seriously, which I personally find difficult when the story is about a 16 year old saving the world from certain doom.
American teen romance movies are all the same. Everyone including the MC is super shallow and all about looks. It's so predictable.
Average boring girl likes cute new boy with British accent. Popular pretty mean girl likes cute boy. Cute boy likes average girl because she's "different", and popular girl will do everything to keep them apart. Karma gets popular girl, and boring girl and cute boy end up together. Put Noah Centineo in it and boom! You have a Netflix show.
I could do without seeing another Peter Pan or Wizard of Oz retelling for the rest of my life. Also supernatural detective stories have been done to death at this point
No more idol shows.
Stop it with the Korean Soap Dramas
Stop it with ultra violent super heroes that are trying to be edgy.
I'M SICK OF IT! STOP IT!
Isekai villianess, villianess turning back time or just turning back time stories with duchesses, princesses, ect. It's basically the same plot in all of them, with little changes.
commercial narrator voice
If you have an isekai story, it must include a Villain or Villainess (I freaking HATE when “ess” gets added to a title to make it feminine, especially if it wasn’t even gendered in the worst place like with villain) in the title. If villains/villainesses are in low stock, it can be substituted with a duke/duchess (but it must have a sinister adjective infront of it
No more "I have to marry the male lead" or "I don't wanna be the villainess!" Stories! They've been done to death!
So many trending comics are just these tropes again and again...
Don't forget having all the male characters who hated her /treated her like shit fall for her after her "change", despite neither sides getting a character development or whatsoever that would have been a prepositions to it.
I thought of another one. Paranormal romances.
For me, there is one thing if you have a solid story premise and along the way Character A falling for Character B, who is INSERT SUPERNATURAL CREATURE. There are series that make this premise work. But then there is what we commonly see, human girl being forced into a relationship with a supernatural guy. She probably doesn't have any friends or family of her own and if she does, they are either killed off or absorbed in the MMC"s "pack" as a love interest to a side character.
Oh crap you're actually the only person I know who likes solar punk. Glad to see another solar head around here! 
Also, any other iteration of little red riding hood. If I see another big bad wolf/girl I'm gonna zayn.
i didn't even know the genre had a name till recently but i've only ever stumbled upon a rare few stories that fit within it
I'm applying to the solar punk world aswell 
As much as I like some good old dystopian mad Max- like worlds, the green future is just much more realistic and super interesting. As soon as humans are gone, Booom! Nature is back baby! Tschernobyl is the best example for it.
And yes... Please stop with the copy paste vilainess stories :,D
Like all the historical stuff.
By which I mean the historical stuff you know rather than all the other interesting stories. So many Henry VIII and his wives and tudors in general told over and over in slightly different ways but nothing new because it's history so just a little bit more sexy or gritty or funny. We get it.
Also, King Arthur. Has there been a decent King Arthur story recently? Was the last good King Arthur story the Sonic game? Almost every story that has to resort to King Arthur just falls flat. Which is a shame because there's loads of fun stuff in the mythology that's like completely ignored in favour of the Arthur Guinevere Lancelot love triangle or the big dramatic battle post LoTR (because everything needs epic fantasy battles post LoTR) or both because gritty and sexy.
Funny enough, I know of a lady writing a "sexy twist" on Henry VIII and Anne Boleyn. (cue eyeroll)
Idk if you are a Scooby Doo fan but they recently did a cool take on King Arthur in "A Sword and a Scoob". Daphne single-handled takes on all of the Knights of the Round Table with Fred cheering for her as "His Knight in Shining Armor" and Shaggy totally calls King Arthur out on his misogny. It's a pretty cool movie.
