Talk to Andrew Henderson’s team at
Nomad Capitalist - they help people work through this exact type of problem all the time. For a fee, of course, but the right advice may be well worth it. Just remember that the IRS has long tentacles and thanks to Obama’s 2010 FATCA law - which our friends in the GOP made zero attempts to repeal when they had the majority - Americans are considered a bad risk by banks in other countries.
Emigration as a citizen is far more difficult and expensive than it used to be - many who have work or business interests overseas feel compelled to renounce, even if they would prefer not to.