How to easily identify broken or potentially broken columns in a table without risking any accidental changes

Is it possible to see "children columns" rather than parent columns? Or is it possible to see all columns that have an error? I want to delete some columns as I'm nearing the 72 columns limit, but I don't want to accidentally break the table. How can I either: easily see all broken column or see which columns I'm about to break so I can do this without messing anything up?