If you like onions, you will probably like leeks. They are milder and can be very aesthetically pleasing. They are great for quiches, roasts, or just to elevate everyday dishes.
This is right from the market. The lower half is not normally edible, but I’m sure someone knows how to use them for something.
Cut off the top and bottom and soak in water. They are usually full of sand. If you are dicing them, cut then put in a large bowl of water and allow the sand to settle.
I also sautéed some and added them to an omelette the next day!