Best modeling program for abstract 3D scultures

Hi everyone, I've been in the technical field of 3D design and have worked with Auto-Cad and Fusion, Creo, etc....

Now I want to design and render a bit more freeform shapes. Does anyone of you have a tip which software is suitable for such creative 3D modeling?

In the attached file an example to show you.

Thanks and greetings
RB