Pets that require low maintenance and provide a sense of routine and structure can be beneficial for people with OCD. Some suitable pets for individuals with OCD may include fish, turtles, or reptiles. These pets can provide a calming presence and require minimal interaction and care, which can be helpful for individuals who may struggle with the demands of more high-maintenance pets. Additionally, watching fish swim or observing the behaviors of reptiles can be soothing and provide a sense of relaxation for individuals with OCD.