What are some great clothing pieces for a young woman with a rectangle body shape?

I have a rectangle body shape. I’m a normal weight, and I’m a spring (as far as best color palette for your skin/hair color go). My bust is fairly small, but my thighs are more curvy. I mostly have an undefined shape.

What are some good clothing pieces I should try? What should I highlight? What should I hide? Where are some places I could this type of clothing?

Thank you so much!