Post-quantum cryptography (PQC) schemes have emerged in response to the mounting threat posed by quantum computers to existing public-key encryption. Over the past 20 years, PQC research has expanded significantly, yielding a wide range of quantum-resistant algorithms. The difficulty remains substantial, given the massive task of switching a huge number of new devices to PQC schemes. In view of the complex multi-decade shift from classical to PQC schemes, a thorough examination of the research articles was reviewed to take into account the most recent PQC schemes, essential defenses against quantum threats, practicality, compliance, and implementation difficulties. This will provide new researchers and future studies some perspective and guidance.