There are many figures of speech that use repetition:
Rhyme - Repeating sounds at the end of words.
Alliteration - Uses repetition of a specific consonant sound at the beginning of words or syllables.
And many more! But these are basic ones that you might be referring to.
Narrow means to decrease the amount of choices
I can’t see the play but yes in my opinion it is very dangerous because it might lead to greed
Henry Fielding: Joseph Andrews
Tobias Smollet: Roderick Random
Cervantes: Don Quixote
Lawrence Sterne: Tristram Shandy
Longus: Daphnis and Chloe
Samuel Richardson: Pamela: or Virtue Rewarded
Hope this helps! :3