In the evolving landscape of wireless communication, the demand for high-speed data, broad coverage, and reliable connectivity continues to grow. One of the pivotal technologies that addresses these challenges is relay selection. This concept has become essential in multi-hop networks and relay-assisted communication systems, where intermediate nodes, known as relays, help extend the range, enhance the quality of service, and improve data transmission efficiency. Relay selection determines which relay node to use to optimally forward data between source and destination nodes, ensuring better communication performance in scenarios where direct communication might be less efficient.