Best website for noir/mystery with some light supernatural stuff?

Ok so long story short, I wrote my first actually decent-ish thing a few months back after reworking an old project. Problem is, that it ended up being too long for a short story and too short for a standalone novel (with a bit more than 17.000 words I believe it qualifies as a novellette).

The genre of the work is Mistery/Noir with some light supernatural elements.

Given the genre and especially the length, my chances at traditional publishing with this are basically nonexistent, so self-pub/online pub it is.

Now the thing I need help to find out where exactly it would be best to publish it. A friend recommended Royal Road to me, but from what I can tell that place seems more interested in fantasy than noir so I'm not sure if that's the right choice.

Any advice is appreciated and thank you in advance