Where is the best place to buy Sui?

Could you please tell me where I could find the most suitable location to purchase Sui? I've been looking around, but it seems like the options are quite diverse and I'm not sure which one would be the most reliable and cost-effective. Could you provide some insights into the various platforms or exchanges that offer Sui, and perhaps recommend one that you personally trust or have had a positive experience with? Additionally, would you mind sharing any safety measures I should take while making such a purchase, to ensure that my funds and personal information remain secure? Thank you in advance for your assistance!