How to purchase Cardano ADA?

Could you please enlighten me on the process of acquiring Cardano ADA? I'm quite interested in investing in this cryptocurrency but am not entirely sure where to start. Could you guide me through the steps involved in purchasing Cardano ADA? Are there any specific exchanges or platforms that you would recommend for this purpose? Also, would you mind sharing any tips or considerations that I should bear in mind while making this investment? Thank you for your assistance.