There are actually only about 12 true winner take all states. The rest are either proportional, or what is considered a “hybrid”. That is, the winners of each congressional district get three delegates per district, and then there are additional state level delegates that either all go to the state winner, or are awarded proportionally.
I think it is less than 12 that are true winner take all. But don’t down play that number
as it can be somewhere around 25%+ of the delegates needed to win the nomination.