Light-roasted coffee with cardamom for traditional gahwa-style serving.
When I think of an easy, crowd-pleasing thing to bring back from Saudi Arabia, oud perfume oil is a good pick because it does not need much explanation when you hand it over. Small bottles are best. A local scent, soap or oil feels personal, but it is still easy to pack and usually does not cost airport-perfume money. 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.
I would put Premium dates on the list for Saudi Arabia because it is the kind of thing that feels useful once you are home, not just another airport purchase. Fresh produce can be tricky, so the practical choice is dried, preserved or packaged versions that keep well. The reason it works is that it gives you a quick reminder of the trip without needing to keep a fragile ornament safe forever.
Sadu woven pouch is worth adding because it feels like something you actually noticed while travelling through Saudi Arabia, 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.
Soft dark dates from Medina, often bought as a premium gift.