Where can you buy constellation?

I'm curious, where exactly can one purchase the cryptocurrency known as Constellation? Are there specific exchanges or platforms that support its trading? Is it available for direct purchase using fiat currencies like USD or EUR, or is it strictly traded for other cryptocurrencies? Additionally, are there any safety precautions or considerations I should keep in mind when making such a purchase? I'm eager to learn more about the options and best practices for acquiring Constellation in a secure and efficient manner.