I think the most interesting attempt was the Shavian alphabet: https://en.wikipedia.org/wiki/Shavian_alphabet https://en.wikipedia.org/wiki/Shavian_alphabet Th

I think the most interesting attempt was the Shavian alphabet: https://en.wikipedia.org/wiki/Shavian_alphabet https://en.wikipedia.org/wiki/Shavian_alphabet They all have their shortcomings, of course. Possibly the most universal one is that none of the ones that I'm aware of seen do a good job of capturing the word stress system in English pronunciation. By contrast, for all its failings, the the current orthography does encode clues that a very experienced speaker of the language can use to infer word stress with a reasonable degree of accuracy.