How to swap ZetaChain?

I'm interested in understanding the process of swapping ZetaChain tokens. Could you elaborate on the steps involved? I've heard about decentralized exchanges but am unclear about how they work for specific cryptocurrencies like ZetaChain. Is there a specific platform or protocol I should be using? Are there any fees associated with the swap? And how secure is the entire process? Your insight would be invaluable as I navigate this new territory of cryptocurrency swaps.