Where can I buy OpenDAO coins?

Excuse me, I'm a bit new to the world of cryptocurrency and I'm interested in purchasing OpenDAO coins. Could you please guide me on where I can find a reputable and secure platform to make this purchase? Are there any specific exchanges or marketplaces that you would recommend for trading OpenDAO? Additionally, are there any important factors I should consider before investing in OpenDAO, such as market trends, project fundamentals, or community sentiment? I'd appreciate any insights or advice you could offer to help me make an informed decision.