I am reading Modern Quantum Mechanics by Sakurai for my semester. I read about the Quantum Entanglement, Bell Inequality and Hidden Variables theory, EPR Paradox etc. and got fascinated. I just wanna learn more deeper theoretical aspects of Quantum Entanglement in a systematic way(say a roadmap). But i couldn't able to search for resources specific to this topic. Any help would be  greatly appreciated.

Note: I'm a physics undergrad with knowledge on Classical Mechanics, Electrodynamics on the level of Griffiths and some of them from Jackson, Quantum Mechanics by Griffiths and Sakurai (approximation methods, angular momenta, scattering theory over, starting Relativistic QM), Classical Field Theory (most of Horatiu Nastase's book), Lie algebras (Gregorie).