Thank you.Have some Chrome seo plugins like seo quake
Have google settings to show 100 results, use a Data scraper plugin, move to next 100 results, scrape using plugin, rinse and export into excel - you’ve got a list, use a crawler like screaming frog or Xenu to check server response of the account - pick and register the dead ones with value
The rest : Brain
Will need : time and a lot of it but do it right, you’ll find nuggets
Thank you.
Finally something that is straight forward.