It sounds like you are looking for a community that show cool visualizations based on scientific data. The idea of the community is more about the practicioning of data science. But I like the idea of a fact check visualisation channel.
A bit like /dataisbeautifull but with a stronger emphasis on the scientific value rather then just the prettiness of the graph yes.
I can dream a bit beyond that and picture the idea into find relevant news articles on other communities to post links to the available data about the subject.