Most social media data is not sharable, or at least not sharable in its raw format. Below are links to some data sets available for use. For more information about specific data sets, see the link next to the data set to obtain author contact information.
Capitol Siege Information Operation
A fairly full recording of the Capitol Siege information operation, starting with the White House Media Summit in July of 2019. The entire set contains nearly 220 million tweets, the bulk of that being interactions with sixteen individuals who attended the July 2019 event. From Neal Rauhauser. [LINK]
Amazon, Yelp, TripAdvisor review datasets -
Buzzfeed Election Data Set2 - This data set, gathered during the months leading up to the 2016 United States Presidential Election, is a collection of real and fake news stories with the highest Facebook engagement. Buzzfeed News gathered this data using keyword searches on the content analysis tool BuzzSumo (Horne & Adali, 2017). [LINK]
Buzzfeed Hyperpartisan Facebook Page Dataset - (Granik & Mesyura, 2017; Potthast, Kiesel, Reinartz, Bevendorff, & Stein, 2017). Not to be confused with the previous Buzzfeed dataset, this dataset contains a series of articles published on Facebook over the span of a week in late September 2016. Each article was fact-checked by 5 Buzzfeed journalists. The corpus includes 1,627 articles—828 from mainstream news agencies, 356 from left-wing sources, and 545 from right-wing sources. [LINK]
Media Cloud 2016 election data - [LINK]