"Grachtengordel" (canals) is great to practice pronunciation.
The German word is very similar: Angstschrei ;)
Along with “herfstschraalte” (autumnal skimpiness).
I'm not sure that is in the dictionary. You can get more consonants with slechtstschrijvend and zachtstschrijdend, which are perfectly normal Dutch words but unlikely to end up in the dictionary (worst-writing and softest-treading). With the transliterated Russian borsjtsj you can get one more: borsjtsjschrokkend (Borscht-devouring).
Angst scream?
German/Dutch "Angst" is English "fear", the English word "angst" is more "existential dread".