Looking for insight from those who have worked on social reports on events they host with different artists/performers

 Traditional reporting/benchmarking is not as effective due to content related to certain popular artists/performers naturally getting more engagement than others. Looking for advice on how to guide content strategy best when post differentiators may just be due to artist. What would be the best way to analyze what types of content (different color backgrounds, visual elements, audio elements, etc.) would truly perform best prior to a performance?