We used the following article as practice for finding the essential information to include in a poster. Any article will work, but this one was short (about 4 pages) and included some charts and graphs, so it was easier to work with.
Li-Yin, Liu, Christopher J. Devine, and Heidi Gauder. 2020. “The Gender Citation Gap in Undergraduate Student Research: Evidence from the Political Science Classroom.” PS, Political Science & Politics 53 (4): 729–33. https://doi.org/10.1017/S1049096520000426.