The Distortion effect does exactly what it was designed to do.
This is an example of the type of thing that it does:
Information about the distortion effect can be found in the manual: http://manual.audacityteam.org/man/distortion.html
As with other effects of this type, it is necessary to practice with the effect to get the best out of it.
I gave one example of how to make a crackling sound here: https://forum.audacityteam.org/t/how-to-make-slender-like-static/47179/4
Trebor suggested where you can download crackling sound effects: https://forum.audacityteam.org/t/how-to-make-slender-like-static/47179/9
Perhaps you could try searching with Google.