It depends on what kind of insurance you are referring to. Third party insurance is any type of insurance policy that protects an insured from the claims of another party in the event of an accident or injury.
For car insurance, the best third party insurance would depend on a number of factors such as your driving history, the type of vehicle you drive, and your location. You can use comparison websites such as MoneySuperMarket, Compare the Market, or GoCompare to get quotes for third party insurance from different companies. Keep in mind that the cheapest option may not be the best as it might not have all the features you need.
For pet insurance, the best third party insurance would depend on how much coverage you need and how much you are willing to pay. Companies like Petplan, Argos Pet Insurance, John Lewis Insurance, and Direct Line all offer third party pet insurance. Again, you can use comparison websites to help you shop around and compare different policies.
No matter what kind of third party insurance you need, it is important to read through the policy carefully and understand what is and is not covered. This can help you make an informed decision and choose the right policy for you and your needs.