a good few vs copious

a good few

det
  • A number of, more than a bare few. 

copious

adj
  • Full of thought, information, or matter; exuberant in words, expression, or style. 

  • Vast in quantity or number, profuse, abundant; taking place on a large scale. 

  • Having an abundant supply. 

How often have the words a good few and copious occurred in a corpus of books? (source: Google Ngram Viewer )