I don’t have an answer, but I would also be interested in a spreadsheet of “people who have supported EA” with loose measures on scales of 1–10 for things like “how widely known is this person,” “(roughly) how respected is this person’s opinions by their audience,” and “how much did they support EA?” The second one might be especially tricky since some people might have a very polarized reputation (e.g., Trump, Elon Musk). (Then again, it might also look kind of weird 😅)
I second Harrison D's suggestion to create a spreadsheet of endorsements, since such a list might be useful to a number of EAs and EA orgs, beyond the specific task of updating effectivealtruism.org.
Sources that may point you in the right direction: