Alright, so you're digging for the really good stuff, the ones that actually make you feel something beyond just the fantasy. That's a tough niche because a lot of RPF fics can stay pretty surface-level, but there are absolutely gems that dig into the psyche. The best ones I've found treat Marshall as a character study, not just a celebrity insert.
My absolute top recommendation would have to be 'The Monster You Made' by HalcyonWings on AO3. It's not a romance in the traditional sense for a long, long time. It's a slow, brutal deconstruction of fame, addiction, and recovery, where the reader character is a therapist. The emotional depth comes from the raw vulnerability—it pulls from his real lyrics about being a 'monster,' his fears for his daughters, and the crushing weight of his persona. It feels less like wish-fulfillment and more like a psychological drama. The relationship that develops is messy, hesitant, and earned through shared pain, not instant attraction.
Another one that stuck with me is 'Recovery' on Wattpad, though I've forgotten the author. It takes place in the aftermath of his overdose and follows a nurse who works with him. The focus is on the quiet, grueling work of getting better, the shame, the physical therapy, the moments of defeat. It's heavy, but it feels incredibly human. You get the sense of a man piecing himself back together, not a superhero. The romance is a secondary thread to the main theme of survival, which makes its eventual emergence so much more powerful.
A lot of people recommend the fluffier, protective!Eminem fics, which are fun, but for depth, you really need the stories that aren't afraid of the darkness. Look for fics that use his music as a narrative backbone, not just decoration. The ones where the 'reader' has their own substantial flaws and trauma create a dynamic where the connection is built on mutual understanding, not rescue. That's where the real emotion lives.