How can I buy WBNB?

I'm a bit of a newcomer to the world of cryptocurrencies, and I've heard of WBNB but I'm not quite sure how to purchase it. Could you please explain in simple terms how I can buy WBNB? Is there a specific exchange or platform I should be using? Also, are there any fees or commissions I should be aware of when making the purchase? Additionally, is there a minimum or maximum amount I need to buy? I'd appreciate any guidance you can provide to help me navigate this process.