HD25-1 and its variants are the most Grado-like I've heard and they play rock well. I don't enjoy them because they sound a little shrill. They press very hard against the ears, which is why they're so isolating.
I don't recommend M50 for those genres because its treble is thin and metallic. That's why I returned it. String instruments need better treble (such as Grados
My favorite closed models aren't Grado-like, but they're good all-rounders. I especially enjoy SRH840, though the headband needs some modding. It's somewhat warm whilst still being clear. I have less experience with DT770-250 ohms, but I liked what I heard--pretty smooth and integrated--and it's comfortable. Both of those were very pleasant surprises to me. Maybe they demonstrate that although open beats closed, closed has its own virtues.