I've been experimenting with LUTs for a while now and one of my favourites, especially for night time stuff, is the Fuji 3513 emulator. You get a really authentic film feel with some subtle orange & teal vibes thrown in. I also like to add a bit of additional grain into the mix as a composite.
It combines pretty well with the footage from my Sony RX100 IV which can also shoot in S-log, incredible for what is essentially a pocket camera.
I gave it a proper little test run with my latest short and I'm really happy with the results - it's really helped me set the tone and find the mood I was looking for. As much as finding the narrative of your piece, I really feel the look of the project can also speak volumes and this LUT really helped me out here.