I won't suggest all your crypto holdings at this point when you got plans to move out of your country, you just need to try cash out as soon as possible whether it's tax free or the necessary tax paid then buy bitcoin where KYC isn't mandatory then move to cold storage.
Tax is important with any company so make sure doing due diligent reseach about tax policy in your nation and hire a professional lawyer to do tax report for you if necessary. Saving money for it is not good, but only raises more risk to your business and yourself as a business entrepreneur.
He is about to register a company only for tax purposes, he isn't running any company and individuals are taxed at 50% tax rate in his country while compnaies are at 20% that is why he wanted suggestions but registering a company would require reporting all of his assets so in future the government wants 50% taxes then he will have no other choice.
Currently UAE is where people who wants to move for tax purposes but it's mostly working for the super rich, not for an average individual.