How to sell Aya for Platinum Warframe?

Could you please elaborate on the process of exchanging Aya for Platinum in Warframe? As a player, I'm interested in understanding the steps required to make this trade efficiently and safely. Is there a specific marketplace or platform that's recommended for conducting such transactions? Additionally, are there any potential risks or precautions I should be aware of before initiating a trade? Your guidance would be greatly appreciated.