Where can I buy Celo?

I'm interested in purchasing Celo but I'm not entirely sure where to start. Could you please guide me on the best platforms or exchanges to buy Celo? I've heard about a few options like centralized exchanges and decentralized exchanges, but I'm not sure which one would be more suitable for me. Also, could you provide any insights on the security measures I should take while making such a purchase? I'd appreciate any advice you can offer to ensure a safe and smooth transaction.