I own a Prusa mk2s and ender 3 3d printers. For modeling organic shapes I use reality capture. For Some of the cases and such I use Solid Works hobby license, depending if I can easily measure, find dimensions online, or find someone else’s cad model. For other things that have a lot of weird curves that I could not easley measure I use the free Fusion 360 license to trace on a picture like this: https://www.youtube.com/watch?v=dUiIAb1YqeM
On 3d scans though, I will use a combination of Instant Meshes, Meshlab, Meshmixer, and very little blender ( I’m not very good at blender ) If you like I could make a video like this one: https://www.youtube.com/playlist?list=PLwoQUKvEUdy7xamPKNNM-LjgOTq3fdpj4