For starters, I am using Windows 10 and the latest version of Audacity, which is 2.3.3. Attached to this post is a demonic voice effect from a Youtuber. I want to know how he did it, so that I can do it myself. Is there a way to get the settings of the effect or save it as a preset? Or if anybody knows how to exactly make that demonic voice effect, let me know. Thanks! 
The free version of Grallion2 plugin can produce something similar …
NB: Currently only 32-bit versions of plugins work in Audacity on Windows.