I have not seen a whole lot of replications or variations on these experiments. Maybe more were done and they were
not noteworthy.
My understanding is that they are rare, and haven't much confirmed the original result.
And even the original experiment was not as one-sided as it is sometimes presented. The guards didn't all become evil. Some became humanitarian and helped the prisoners where they could. Some became neutral and just did what their job, or rather their role, required. One in particular became a bad egg. Later he said he was running a little experiment of his own: he wanted to see how far he could go before the psychologist stopped him. If he hadn't been there, this experiment probably would have got different results.