What are some workouts I should be doing to get a smaller waist?

I already know diet is a major part, but there has to be some strength training I can do besides have a rib removed, right? I want a curvy nipped in waist like this link not a boxy muscular waist like this link Not dissing her body, but it's not what I'm going for.
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First link link (waist I want)

Second link link
What are some workouts I should be doing to get a smaller waist?
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