An account on an ESPN Mastodon instance that comes with and logs in with that Disney+/Hulu/ESPN bundle would probably be popular. Doesn't even have to federate.
Based on the post I replied to, it sounds like realtime updates are an important feature. All the accounts would have RSS feeds if someone wanted it in that format.
There will be cost and consequence of moderation, with very limited benefit given its content subscription model.
I was thinking read/boost-only for all but select users, like sports celebrities.