NEtwork graph of entities using Angular

I will have a few million entities and they are related to each other for different reasons. I want a cool and nice-looking network graph that explains this.
If you have not done such work, I suggest you give it a pass for now as I have already done the R&D and am not happy with what I have got.
If you have done something similar, give me a preview (screenshot as small as you can make to protect your IP), I am okay to do it with multiple people.

You don't need to worry abt how it would integrate with the project. You have to just give me the code which would work on a large json file (structure you can propose).