Are there any programs or sites for building plans in the form of a tree or nodes?

Question

Project management

Tell me if there are programs or sites for easy planning?
It is necessary for the perception of the project and the knowledge of what is inherited over what. I want to do something like disdoc in this regard.
For example, I’ll take nodes (You can take the example of the same Blender or Unreal Engine) We have a company (First node) and branches to studios, for example, take one studio and imagine that lines go from it to employees (Each employee has his own node ) and the project they are working on right now. The project itself begins to disperse into components to which those responsible for the development of this type are attached.
I will attach an approximate view of how I imagine it so that you can immediately understand.

Answer 1

Xmind is a very cool thing, it can do almost everything, a large number of templates

Answer 2

mind42.com

Answer 3

https://www.gliffy.com

Answer 4

MindNode for Mac