Words that differ only by a /s/-/z/ exchange

Dear English enthusiasts, My first language (Malayalam) doesn't have the /z/ sound and I have been pronouncing it as an /s/ all my life. I have heard that Spanish speakers have a similar problem. This is particularly tricky due to the existence of word pairs where the difference in pronunciation is purely an /s/->/z/ change. Examples: rice, rise precedent, President close, close loose, lose race, raise, face, phase, disease, decease price, prize Where can I find a complete and exhaustive list of such word pairs? Is it possible to use any Python package to find all such pairs in the English language?