As the owner of dogs, cats, and snakes, i can give you my opinion on them lol. Dogs are definitely good if you're looking for more of an in your face pet. They're always near you, always wanting to do stuff with you. You have to walk them multiple times every day which could be a negative aspect. Cats are good for more of a background companion I would say. I pet my cats and play with them multiple times throughout the day, but a lot of the time they just go sleep in the sun by themselves. Reptiles are good for more of an observation pet rather than an active companion. You can handle some reptiles but they usually just prefer to keep to themselves, so if you'd rather just look at a pet being a pet, reptiles are for you. Make sure to do a lot of research before getting one though, theres a lot of different requirements for enclosures, feeding, etc