Hi @austinfarmer786 ,
Some thoughts….
There is not really a rule of thumb for that. It can often depend on what you’re making; for a hexagonal nut, for instance, you will definitely not want to use the default 32 Verts!
Try to use as little Verts as possible (there is Shade Smooth and the Subdivision Surface Modifier). It is usually a lot easier to add Vertices, than to remove them.
After more than 10 years of using Blender, I still sometimes add a Circle with the incorrect amount of Vertices for what I’m making and have to start over. When someone in a tutorial adds a Circle with a certain amount of Verts, chances are they came to that specific amount by trial and error.
