You can query posts by “Comment Counts” using the Post Grid Combo plugin. This article will show you how to query posts by comment counts.
Click on the “Query Post” tab.

Change “Page Type” to Page.

Now, by clicking the Choose button, you can search for “Post Parent.” Click on the preferred option.

For “Post Parent“:
By selecting this option, you can choose single parent’s child pages or posts by entering the page parent ID.

For “Post Parent In“:
By selecting this option, you can choose multiple parent’s child pages or posts by entering the page parent IDs (comma separated).

For “Post Parent Not In“:
By selecting this option, you can exclude parent’s child pages or posts by entering the page parent IDs (comma separated).
