How to purchase Core DAO?

Could you please elaborate on the steps involved in purchasing Core DAO? I'm a beginner in the world of cryptocurrency and finance, and I'm interested in diversifying my portfolio. I've heard about the potential of Core DAO but I'm not sure where to start. Could you guide me through the process of acquiring it? Are there any specific platforms or exchanges that offer Core DAO? Additionally, what are the key considerations I should keep in mind while making this purchase? Your insights would be greatly appreciated.