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.