Good luck to prove that the management︄ of a sole trader company (I mean 1 shareholder, 1 director) is effectively done elsewhere,︅ it requires a top notch tax lawyer who has balls of steel to deal with︆ the tax office.
I don't know here comes from OP, but a tax investigation in︇ some western countries, if you're alone, they'll flip you, shave you and make you pay.︈ Better to go with a lawyer or at least your accountant.
f) the good old︉ style find a friend who do no profit and therefore pay no tax, he issue︊ an invoice for consulting or whatever non tangible services, you pay him, he gives you︋ back 90% in cash... People do that since taxes exist.
g) live in a country︌ A - open an electronic bank account wordlcore/leupay/etc with an address in country A -︍ leave country A - be a tax resident of a country B - time to︎ time agree with one of your client to pay you on the worldcore/leupay without taxes️ - pray hard that even there is an automatic exchange of info with country A, country B will not be informed.
Or pay your taxes and sleep well, shaved as f**k, but you'll sleep better.