The best words to start with are probably those loaded with vowels. Here are 6 five-letter words with 4 different vowels, which can be used in Wordle.
These are: adieu, audio, aurei, miaou, ourei and uraei.
Any of these words will provide a good platform. Which of these do I prefer? I haven’t yet made up my mind, but the very high frequency of the letter r and the higher frequency of a over o suggests the very best starting words are aurei and uraei.