Which type of dramatic structure uses the technique of juxtaposition and contrast to connect scenes?

The answer is "the episodic structure".

The Episodic structure is comprised of a progression of sections or stories connected together by a similar character, put, or subject yet held separated by their individual plot, reason, and subtext. Truth be told, the parts or stories could be rearranged around and put in an alternate request if wanted on the grounds that there is no general starting, center, and end to the book or story in general.