I keep things simple.
Hell, I normally stick to using them/they normally. But in my native language, he/they is fine by me.
I mean, voi/voids and dark/darkness work the same as each other, and that's just in case someone who wants to use it, they can use it.
Aha...Tbh, I feel like folk who wanna call me Void, they can use voi/voids and dark/darkness. And people who wanna call me Crow, can use he/they and....it'll be obvious if folk wanna call me Shadow, then them/they, is what they can use.
Although, those who know my actual name (as in my first name), that I hate so much....they know to use them/they anyways.