Where can I buy prosper?

Excuse me, I'm interested in investing in the cryptocurrency Prosper, but I'm unsure of the best place to purchase it. Could you please guide me on where I can safely and securely acquire Prosper tokens? Is there a specific exchange or platform that you would recommend for buying Prosper, or are there any particular steps I should follow to ensure a smooth and successful transaction? I appreciate any insights or advice you can offer on this matter.