Recommendations about boat registration

[ak5609]

Hi there. I would like to ask the sailing community about advice on a registration for my friend, who has Swiss nationality. He is tired about Swiss requirements and want to register somewhere else.
In Germany it's not possible as he does not live there.
In Jersey or Guernsey it's not possible because he has no EU citizenship.
In Malaysia it is possible, but a lot of money has to be paid in advance.

Any advice for us? Boat is a catamaran Fountain Pajot year 2009.

Thank you
Alex