Your question seems to be more related to image brightness when displayed rather than "exposure." This comes down to having a calibrated monitor and screen brightness appropriate for the ambient levels.

A tool I use is a gamma test strip... I have it embedded into the Lightroom interface as the "identity plate."

If I can't see the difference between the dark squares in the top row my monitor is too dark. If I can't see the difference between the brightest squares in the bottom row my monitor is too bright. And if I can't clearly see the gradations steps in the midtones then the gamma would be off (need to recalibrate).

Another trick you can use is that something that is white on the monitor should be about as bright as a piece of white paper in the same ambient light (slightly brighter).

But you can never control how your image will look on everyone else's screens... just let that idea go.

Recording dark scenes is where "overexposing," or "exposing to the right," is most beneficial (using aperture/shutter speed; not ISO). This helps you record more data in the dark areas so you have something to work with... you can always pull it back in post.

This is the test strip:

The top row is alternating squares with luminance values of 0 and 4... on a well calibrated monitor at the right brightness they should just be distinguishable (a bit less visible in a white BG/workspace).