Pets that are good for someone with PTSD are typically ones that can provide emotional support and companionship. Dogs are a popular choice as they are known for their loyalty, ability to provide comfort, and are often trained as service animals for individuals with PTSD. Other good options may include cats, rabbits, or even therapy animals like horses or guinea pigs. Ultimately, the best pet for someone with PTSD will depend on individual preferences and needs. It's important to consider factors such as the person's living situation, lifestyle, and ability to care for the pet before making a decision.