Where can I buy Streamr?

I'm interested in investing in Streamr, but I'm unsure of where to purchase the cryptocurrency. Could you please provide me with some information on the various platforms or exchanges where I can buy Streamr? I'd like to know if there are any specific requirements or steps I need to follow in order to make a purchase. Additionally, I'm curious about the fees associated with buying Streamr on these platforms and if there are any security measures I should take to protect my investment. Thank you for your help.