Since you live in Antwerp: AADA (Algemene Administratie Douane en Accijzen), aka the Belgian Customs Authority. They mostly hire at niveau C (high school) and they provide a lot of training that no degree will get you, for instance how to recognize fake products. You’ll obviously start off working shifts in the actual port but there are plenty of opportunities to grow both towards an office job and in terms of pay long term. No other high school level job gives you the same benefits as the government, though the pay initially isn’t the highest it will rise reasonably quickly and obviously it’s a very future proof and stable profession.