If you are looking for a formal study related to this topic, the following research from 2019 and early 2020 provides a technical and social context for country dance music:
To help you find the exact document, could you clarify if you are looking for: A on how country music affects dancing? A marketing report on country music sales for 2019? The tracklist for a specific DJ mix you heard?
Tracklist. Playing tracks by Dierks Bentley, Rodney Atkins, Scotty McCreery, Tim McGraw, Riley Green and more. country_dance_party_mix_2019
If you are referring to a music compilation or playlist rather than a research paper, the most prominent "mixes" from that year include:
: Available on Academia.edu, this study investigates how country music consumption interacts with social class and "elite" culture, specifically in the context of festival and dance attendance. 2019 Country Dance Music "Mixes" If you are looking for a formal study
: Common tracks found in these mixes include "Old Town Road" by Lil Nas X, "Heartache on the Dance Floor" by Jon Pardi, and "Southbound" by Carrie Underwood.
: A data-driven analysis using RPubs that tracks shifts in "danceability," "energy," and "tempo." It notes a general decrease in positive "valence" in dance music over the decades up to 2019. Tracklist
: A popular year-end mix hosted on Mixcloud by the Country Mix Show, featuring artists like Dierks Bentley and Rodney Atkins.