The right place to go in this case is probably the sort of place that will take your money and not extradite you. I heard the United Arab Emirates helps. Maybe Hong-Kong?

Yeah I wonder what a good place would be. If you’re known I gotta think there aren’t many places.

In his case, Israel would have been the best bet.

In most cases this is true, Israel rarely extradites jews and generally the US doesn't try too hard in forcing exceptions (like tying aid to extradition of accused), but this was way too high profile, and SBFs politics in general don't align with Israel's, so I could see Israel not working out for him.