Actually if you look at others' analyses[0] some of those sites have a high mean and/or median. On median score alone samaltman.com should be #1. The highest "mainstream" news source would be newyorker.com, it does have a low median, but the average is ~20 times greater.

[0] https://docs.google.com/spreadsheets/d/1-TCo1mxiTkO4ZiXg5acU...