This is not exclusive to Twitter, but here's a recent research papaer on the comparative advantage of "the right" in dissimination of information on social media.

The advantage of the right in social media news sharing: https://academic.oup.com/pnasnexus/article/1/3/pgac137/66516...

Upenn article summary: https://penntoday.upenn.edu/news/Penn-research-Twitter-gives...