Where can I buy pyusd?

Excuse me, I'm a bit new to the cryptocurrency world and I'm wondering where I can purchase PYUSD? I've heard some buzz about it and I'm interested in adding it to my portfolio. Could you please guide me to some reliable exchanges or platforms where I can safely buy PYUSD? Additionally, are there any specific steps or considerations I should be aware of before making the purchase? I appreciate your help in navigating this new territory.