Not sure how credible but iranintl.com has

>36,500 killed in 400 cities... Our Editorial Board has now obtained more detailed information provided by the IRGC Intelligence Organization to the Supreme National Security Council.

they are an Iranian opposition outfit funded but the Saudis. (https://www.iranintl.com/en/202601255198)

iranintl, yah that's an instant rejection.

There are zero verified sources of any mass killings by the Iranian government. In fact all evidence points to Mossad agents committing the mass killings of Iranian government officials as caught on video, including the wrestler that was just executed for killing a police officer with a machete, on video.