Last time I used Microsoft's 3D Builder to make a 3D model. The 3D Builder is a handy tool and very easy to learn, but it lacks some functions. So I switched to Blender.
Blender is the free and open source 3D creation suite. It supports the entirety of the 3D pipeline—modeling, rigging, animation, simulation, rendering, compositing and motion tracking, even video editing and game creation.
The story of Blender is very interesting and inspiring (youtu.be/qJEWOTZnFeg).