Where can I buy SingularityNET?

Could you please tell me where I can purchase SingularityNET? I've been hearing a lot about its potential in the cryptocurrency world and am keen to add it to my portfolio. Could you recommend any reliable exchanges or platforms where I can safely buy SingularityNET tokens? It would be great if you could also provide some insights on the best practices to follow when making such purchases, like considering fees, security measures, and the like. Thank you in advance for your help!