You can search for community posts that don’t have any replies from the Search Page. If you are looking to be helpful to community members, you might look for content with no replies to get started.
Click the Search Icon inside of the search bar to go straight to the Search Page.
Above the filter tab, select Advanced, then select the checkbox for Topics with no replies.
You will see with no replies added to the applied filters section above your results.
Refine your topics results:
Get started on the Search Page.
I didn't even know about the Search Page! Excellent!