I’ve shipped to and/or received from Denmark, Finland, Germany, Netherlands, France and Switzerland (forgot that the latter was not part of the EU but the package got through customs without fees luckily) and it’s been smooth every time. Have used regular postal services or dhl.
Dhl is best for large quantities like a set, it’s €30 or €40 for larger ones (I shipped 975 Royals to Germany for €40. Smaller quantities like a rack is almost as expensive as shipping to the states (€27 for 1-2 kilos)