Some in the crypto community have embraced Puerto Rico, which seems to have done a good job of promoting itself. But is it for you? I can only address the tax issues, not anything else.
To a large extent, the tax issues depend on what kind of income you will generate, whether personal or business, from where you generate it, and when the income — or even the appreciation in assets — occurs. Ideally, you want all income and all gain to come from Puerto Rico, and all the income and even the appreciation in assets to occur after you become a resident.