I feel the best strategy to win at Wordle would be to see if someone already posted the answer.

If no answer, use reliable hints ( i.e on Twitter) to better inform the initial guess.

Beyond that, the best initial word goes beyond information theory, letter frequency, etc to also be a word that has a realistic chance of being word of the day. As a trivial example, AEIOU may reveal some information on the first guess, but I find it extremely unlikely that you will win Wordle in 1 with this guess.