Your wife is paying taxes in Europe already, which makes her a European tax resident, so she needs to report any taxable income to European tax agencies which is irrespective of whether she used another country's bank account for cashing out the profits. So if you are intend to sell before 2030 then it should be reported and make sure it is under the tax exception limit.

But you may also need to be aware of gift tax when you transfer assets to your spouse, which differs from one to another countries even in EU, but there are also exempted limits which vary a lot. But if you transfer it as gift if you want to avoid any legal complication,s because your wife can't sell something for $10,000 if she can't provide a source of funds, and that came as a gift from you means you can't avoid the gift tax if there is any.

And Binance reports to EU agencies if it used an EU identity to create an account, and if I am wrong, Binance got a separate one for EU regulations, just like Binance US? So you can't use Binance EU as a Latin American!

To get the actual legal ways to avoid taxes, it's better to consult a Tax advisor who has experience with crypto gains.