I did something similar when my friend moved to another continent. I shipped her a care package (with some stuff she had left behind,) and every single side of the box had some sort of “there’s definitely no SEX TOYS inside of this box” label on it.
When I took it to the post office, the worker laughed and even made sure to avoid covering any of them with the shipping label.
There’s also Curse of the Moon, which is an homage to the original 8-bit games. It’s not a modern metroidvania, but if you like the older pre-SOTN Castlevania games then you should check them out.