How may I generate Electron Density Field information using Density Functional Theory calculations? What would my required inputs be like in VASP or Quantum ESPRESSO?
I am assuming you mean just the electron density (as its typically referred to in my experience). In that case, if using VASP, you just set
LCHARG = .TRUE. and you can load the CHGCAR file in a program such as VESTA.
You can also view the charge density of a specific band / kpoint. This page on the VASP wiki will help you set up your desired calculation. This can be helpful to view the conductance / valence bands for example.