So, when I used to be able to cook, pizzas were a specialty. I started at a pizza restaurant and kept learning from there.
Pineapple, onion, and jalapeño make a great combination. I don’t think something as rich as pizza needs meat, but Italian sausage is the undisputed champion if you’re going to go that direction. That with bell peppers, onions, and mushrooms is pretty good too. Though, for god’s sake, pre cook your vegetables. The pizza cooks too fast in a home oven, and way too fast in a professional pizza oven, to cook the veggies (I have opinions about pizza).
I actually really like the “California style” pizza invented (or popularized) by Wolfgang Puck, but it’s not what most people think of when they think pizza (often the only thing in common is knowing how to make a good crust), and I generally consider them separate things.
Anyway, that brings me to the “weirdest” topping combo, which was inspired by one of Puck’s most famous recipes, which was basically lox on a pizza dough. It used crème fraiche instead of any kind of cheese, and had onions, capers, and tomatoes (I had just gotten some really good ones from my aunt’s garden, this was me figuring out ways to use some of them). It was better than expected.