Can I buy RNDR or render?

Could you possibly clarify for me whether it's feasible to purchase RNDR or render? I've been hearing a lot about these cryptocurrencies lately and am quite curious about investing in them. However, I'm still not entirely sure if they are available for purchase or not. Could you please enlighten me on this matter? If they are indeed purchasable, what platforms or exchanges would you recommend for making such transactions? Additionally, would you mind sharing any insights you may have about the potential growth and risks associated with investing in these cryptocurrencies? Thank you for your assistance.