If you like anime, doomsday and weird-ass man-eating giants, I suggest you watch Attack on Titan.

Similarly, if you like to watch the romantic tension of two bright high school students who won't ask each other out because they think they'll lose to the other, watch Love is War. That anime series just gets more and more ridiculous each season 🤣🤣. (Tbh why can't they just date?)

For non-anime series, with a lot of R18 content, I suggest you watch You. It's sinister and sexy at the same time.