When considering pets for families, some popular options include dogs, cats, rabbits, and guinea pigs. Dogs are known for being loyal, friendly, and great companions for children. Cats are independent yet can provide comfort and entertainment. Rabbits and guinea pigs are also good choices for families as they are gentle, easy to care for, and can be great pets for children to learn responsibility. Ultimately, the best pet for a family depends on factors such as lifestyle, space, and allergies.