some kind of vs various

some kind of

det
  • a mediocre; a bare minimum; (denoting that something only barely fits a certain category, or is very mediocre in it) 

  • A remarkable. 

  • Used other than figuratively or idiomatically: see some, kind, of. 

adv
  • Used as an intensifier of adjectives: remarkably 

various

det
  • More than one (of an indeterminate set of things). 

adj
  • Having a broad range (of different elements). 

How often have the words some kind of and various occurred in a corpus of books? (source: Google Ngram Viewer )