Need DARK Romantacy Recs!!!

I need recommendations! Give me all the best DARK ROMANTACY!

Also, what book would you call the pinnacle of all dark romantacy? (In your honest opinion)

Please specify YA, NA, or Adult in comments. All recs welcome.

(Note: Only requirement is that it falls under dark romantacy. Spice level is not a concern. No spice, very spicy, doesn’t matter. And honestly, the darker the better. )

I really do mean dark. Triggers are no issue. Though please tag them for others reading this post. Feel free to rate spice though on a 0-5 scale. 0 being none to 5 being multiple, detailed, in your face, there’s no guessing what’s happening here, scenes.

Edit: I mean dark as in dark themed.