Americans get 0 tax benefit from moving abroad. It can actually be worse.

If you renounce citizenship, you still pay taxes for 10 years and if you have 2M in assets or more the penalties outweigh the benefits.

Puerto Rico has no federal taxes and is still America. Only option.

You have to actually live in Puerto Rico. No gaming the system. Your family has to move as well.

Further, you get 0 tax benefit on anything you already own, just on future earnings once you establish residency.

So no tax reduction on your current holdings.

If you Puerto Rico becomes a state, all bets are off.

Death, Taxes, Childbirth.

If you are American, unlikely you are escaping your tax load.

Accept it and move on.