Anchovies and pineapple are an excellent combination on pizza. I didn't think so until I tried it myself. Anyone else here try it?
I like it but don't do it often. I don't do anchovies in general often. They're usually too salty for an entire pizza, and so pungent you can't really put it on just half a pizza without the flavor infusing the other half.
Also most restaurants have absolutely garbage pineapple from cans that shouldn't be on anything including pizza. Fresh, finely chopped, roasted or caramelized pineapple is worthy of being put on pizza, although how I like this is usually with a white/bechamel type sauce, some mix of mozz/asiago/parm/grana padano cheese, luau type pork and the pineapple.
My main use for anchovy if I'm actually making a pizza is adding a bit of anchovy paste to the sauce. This is actually a great savory ingredient for nearly anything that needs savory.
Also, in random favorite pizzas, one of the best I've had is a super thin crust pizza in a wood or coal-fired oven (good luck finding a coal-fired oven in a pizzeria these days but it is legitimately the single best crust you can get), topped with pesto, very light cheese, grilled chicken and marinated artichoke hearts.
Or in an actual pizzeria, the Grimaldi's (formerly Patsy's) at the foot of the Brooklyn Bridge, which has a grandfathered-in coal-fired oven (they're now illegal in NYC). Even a plain is god-tier (unless it's deteriorated lately).