Question: What kinds of hats do you have?
Analysis

1.You can list the types of hats you own, such as baseball caps, beanies, fedoras, etc. 2.You can also mention why you have these types of hats, such as for fashion, weather, or specific occasions.

Synonyms
Try these synonyms instead of repeating the question:
  1. kinds→types; varieties; styles
  2. hats→headwear; caps