There are several options on Amazon. The charger should meet the PD 3.0 (or greater) standard and should output a minimum of 100W through a single port. It is best to choose an established brand such as Anker.
Although I cannot purchase the MP5 in my country (US), the fact that it could be almost 4 grams heavier than the legal limit is really no concern. 4 grams over 250 grams is only 1.6 %. Although this is not a great analogy, this would be the...