Although there are techniques of making a 2d plugin look like it’s 3d (the previous answer points out a tutorial), for your project I suggest you need a true 3d model. There may be several ways to go. ShapeShifter AE from Mettle can help – it uses displacement maps to extrude any kind of shapes and it has generator- pretty handy for mulriple instances of the same object that can be randomized in scale. position and rotation. Also, Plexus can be used to create 3d structures.
https://library.creativecow.net/jelescu_tudor/ShapeShifter-Review/1
https://aescripts.com/plexus/
Also, Zaxwerks Invigorator Pro allows you to import a true 3d model in AE (you can find probably lots for free) and Element 3d can be used as well (works best with the models from Videocopilot libraries).
Tudor “Ted” Jelescu
Senior VFX Artist