What are the methods avaiable to draw lines in unreal engine?

You will need to go beyond what blueprints offer:

Also:

image

The functionality is locked beyond debug lines. Have a look at the animation (the red wireframe) in this post. 2d lines that respect scene depth.

Never dared to dig that deep but @Rama exposed it all in the Victory Plugin:

Before you proceed to any of the threads he frequents: