I recently learned about a cool website called Retraction Watch. They do exactly what the name suggests: They track papers that get retracted to highlight things that go wrong in the scientific process.
One post for example talks about a Covid-19 related article that got accepted within three days to nature Cellular & Molecular Immunology (213 000 views, still online as of June 16, 2020), but is taking more than two months to retract. Major flaws have been shown in the paper and even the authors have written to the journal that the paper should be withdrawn until additional evidence could be submitted. Another post talks about how a paper got retracted, because the principal investigator in a lab did not authorize publication of the data.
Looks like a really cool project, check it out!