Since
Anders is a truly Scandinavian name, it doesn't need too much of an exotic middle name. That would just look weird in my opinion.
Leonardo and
Orlando sound very Italian.
Orlando also sounds too "fashionable" next to the classy
Anders. So do
Ryan,
Emmett,
Mitchell,
Dominic and
Xavier. The latter is too Spanish/French.
Dominic could possibly work out, but not a perfect choice.
Ryan,
Emmett,
Matthew,
Henry are all very English, therefore not the best choice for
Anders.
Henry would maybe work out, but what about
Anders Hendrik John?
Leaves us with
Anders William JohnAnders Nicholas JohnAnders Benedict JohnAnders Sebastian JohnAnders Samuel John
I'm okay with all of them, but I would suggest the following, more Scandinavian-sounding/looking alterations:
Anders Willem JohnAnders Niklas JohnAnders Benedikt JohnAnders Bastian John