What website can you get dog insurance that covers sickness, accidents, yearly check-ups, dental, etc?

If you get dog insurance for your dog are the vaccinations and check ups cheaper? Is it a good idea to get dog insurance for a small fragile dog?

Im looking for dog insurance, i have 2 pitbulls what would you recomend thats not to pricy and do dog insurance cover if your dog bytes someone or another dog? not that i want something like that to happen.
thank you

I have seen it advertised. I am in the US and was wondering if it would be worth it. Does it cover everything? All yearly tests? Medications? Diseases? Accidents? Are there any companies you recommend?

I have an English Bulldog named Molly who I got for christmas. She is 6 months. I would like to get her insurance but don’t know which one to get her. I would like to know if anyone can help me with some suggestions. Thanks : )