How to buy brc-20 Ordinals?

Excuse me, I'm a bit new to the world of cryptocurrency and I'm particularly interested in brc-20 Ordinals. Could you please guide me through the process of buying brc-20 Ordinals? I've heard they're quite unique and have a lot of potential, but I'm not sure where to start. Are there any specific platforms or wallets I need to use? Also, is there a step-by-step guide I could follow to ensure a smooth and secure transaction? I'd really appreciate any help you can provide.