How do you buy Wanchain?

Can you tell me the process of purchasing Wanchain? Are there any specific exchanges that offer Wanchain for trading? What are the steps I need to follow to successfully buy Wanchain tokens? Is it necessary to have a cryptocurrency wallet set up beforehand? What are the fees associated with buying Wanchain, and are there any additional costs I should be aware of? Additionally, is there a minimum amount of Wanchain I need to purchase, or can I buy any amount I want?