The Value Foundation, https://value-foundation.org/, a foundation associated with Leiden University, the Netherlands, will be streaming Civ3 in a bit less than 1h. They do research on games and history, and have already last year regularly (Tuesday evenings) streamed Civ2, seems this year they'll be playing Civ3.
The announcement is here on Twitter, and you can find the stream later on Twitch here:
The announcement is here on Twitter, and you can find the stream later on Twitch here: