Where can I buy a Polygon MATIC?

Excuse me, could you please elaborate on where exactly one could purchase a Polygon MATIC? I've been hearing a lot about it lately and am quite interested in acquiring some for my portfolio. Are there any specific cryptocurrency exchanges or platforms that support the trading of Polygon MATIC? Alternatively, are there any guidelines or precautions I should be aware of before making such a purchase? Your insights would be greatly appreciated.