I think that no matter where you go, it’s going to be overrun with tourists this year.

I haven’t been to Berlin, but it’s definitely on my to-do list.

If you only have 3 days in Belgium, I would just choose one city and explore the heck out of it. If you have 5 days, I’d probably choose Brussels and one of the other ones. To me, if you try to visit all 3 in such a short period, you enter the realm of “drive by tourism”. I’m not a fan of that. I’ll admit that one of my favorite chocolatiers is in Bruges.