What is a good health insurance that covers everything?

I’m looking for a good health insurance that covers just about everything. My father wants me to start looking for a better health insurance than the one we have now, because every time we go even for a check up, we have to pay everything. I have to get a tonsillectomy but the insurance doesn’t cover as much as my dad wants it to. He is out of town right now and wanted me to start looking into different Health Insurances that cover everything from regular check ups, to minor surgeries, to prescriptions meds, he even wants it to cover Dental and Optometry needs, if there is anything that even covers all of that. I’m not sure if there is a an insurance that covers it all, but it doesn’t hurt to check and ask for advice. Any advice or tips?
Thanks