At first sight,those 2 don't have much in common.But,the doppelganger/robot clone is evident in both.When watching Crowned Clown,I get a similar feeling I got from Are You Human Too.Both shows have a "bad" and a good character played by the same person,complicated family history,people helping the good character adjust and genuinely caring for the "bad" character too.The attempt to survive in different settings due to identity switching in order to protect someone is also part of both dramas.
Watching Cunning Single Lady,I get the same carefree fun vibe I got from Marriage Not Dating.At first,the two shows differ but they still remain two dramas about two couples that are together for convenience (FL in CSG and ML in MND).Also the ML from both dramas appears cold but is actually kind.