1. On the home page or Insights page, find the appropriate time period you want to look at the popular posts
2. Find Popular threads widget, and click View
3. You can filter by specific channels
4. Click on OK after the channels are selected
5. You can sort by number of replies
6. Select the messages you are interested in copying
7. Click "Click to Copy" and now you can paste this in your email client, Notion Doc, or wherever you like :)