Where can I purchase Duko?

Excuse me, I'm interested in investing in cryptocurrency and I've come across Duko. Could you please tell me where I can purchase it? I've tried searching online but there seems to be a lack of clear information on reputable exchanges or platforms that offer Duko. I'm a bit hesitant to use unknown or untrusted sources, so I'm hoping you could point me in the right direction. Any help or guidance you could provide would be greatly appreciated.