Upvote:2
You are looking for places like that ?
Maybe this.
I'd first start by looking at the Detroit Atlas Obscura (maybe too tame for what you are looking for)
Secondly, I'd look at Detroit photographer groups (for example on flickr) and ask for suggestions.
Normally when doing things like there, there are always risks of trespassing and getting caught (part of the thrills of doing some style of urban photography)