Where can you buy Binance coins?

I'm curious to know, where exactly can one purchase Binance coins? Are there specific exchanges or platforms that cater specifically to this cryptocurrency? Or can I find them on more general trading sites? I'm looking to diversify my portfolio and Binance coins have piqued my interest. Could you provide some guidance on the best places to acquire them, and perhaps any tips or considerations I should keep in mind when making such a purchase?