Of course you and @David and Annie are welcome to stay at my place for free at the price of somewhat reduced comfort. Sufficient comfort for one guest; probably a lot worse for two guests.
@Sushi lives pretty close. I’m not sure if there are other people from the Benelux on the forum.
If I’m not mistaken you said you’d visited Amsterdam and Haarlem? The Hague + Scheveningen can be pretty cool if you haven’t been there. There’s also nice old cities like Deventer, but that’s a lot further east.