Where can I get a Polygon?

As a cryptocurrency enthusiast, I'm curious about acquiring Polygon, a popular scaling solution for Ethereum. Could you elaborate on the various methods and platforms where I can obtain Polygon tokens? Are there any specific exchanges or decentralized platforms that offer a robust and secure trading experience? Additionally, are there any steps I should take to ensure the safety of my transactions and investments when purchasing Polygon? I'm keen to learn about the most efficient and reliable ways to get started with Polygon.