Netherlands
I would put Stroopwafels on the list for Netherlands because it is the kind of thing that feels useful once you are home, not just another airport purchase. Biscuits and dry breads are good because they survive the journey and are easy to share at work or with family. The reason it works is that it gives you a quick reminder of the trip without needing to keep a fragile ornament safe forever.
Netherlands
Dutch juniper spirit, historical predecessor to gin.
Netherlands
When I think of an easy, crowd-pleasing thing to bring back from Netherlands, Gouda cheese is a good pick because it does not need much explanation when you hand it over. This is more of a buy-in-the-UK idea now unless current food rules clearly allow it. It still belongs in the database because people search for it after tasting it abroad. I would rate it higher when it is locally made, clearly labelled and easy to use at home, and lower when it is just tourist packaging.
Netherlands
Delft blue ornament is worth adding because it feels like something you actually noticed while travelling through Netherlands, rather than a generic souvenir. The trick is to choose the simple, well-made version. Small craft items look better on a shelf when they are not too shiny or mass-produced. The ideal version is modestly priced, not too bulky, and good enough that you would buy it again even without the holiday memory.
Netherlands
This is exactly the sort of thing I like bringing back from Netherlands: small enough to fit in a bag, but specific enough to remind you where you bought it. I would buy a couple of packets: one to open while travelling and one to bring home unopened, because snacks have a habit of disappearing before the flight. It is also the kind of thing you can talk about when someone asks what you brought back, because there is usually a little story attached to where you found it.