Good ear plugs for swimming under water?

Okay so im thirteen and have been dealing with ear problems for years. I had a ear tube when i was eight and got it taken out a few years after ad ever sense i deal with getting fluid in my ear really easyly and i have been searching for a GREAT ear plug for when i swim cuz i love going under water but if i get any water in my ear it either makes it worse or gives me severe pain. I have done the putty ear plugs and a costimized one and that kinda works but i need something better so if you can give me website and names for different ear plugs that would be great thanks!!