Question: Which spin is best for second serves?
Answer: The topspin serve and its close cousin, the twist, both of which are often called kick serves, give you the safe margin of clearance over the net that you need for a second serve. The topspin in a kick serve makes it possible to hit as much as four feet above the net at speeds over 100 mph. The twist is harder to execute than the topspin, but it's also harder to return.
Learn much more about the twist serve here.
