Where can I buy BNB in small amount?

I'm looking to purchase a small amount of BNB, but I'm not sure where to start. Could you recommend a reliable platform or exchange where I can buy it? I'm new to the cryptocurrency market and would appreciate some guidance on the safest and most convenient way to make this purchase. Are there any specific steps or considerations I should be aware of before proceeding? Thank you for your help in navigating this process.