Watermelon microgreens are rumored to be good chelators also.
Just a warning: all of those foods are very good for chelating heavy metals, unless you have severe (clinical) heavy metal poisoning. In that case these chelators can do more harm then good because they sometimes just redistribute heavy metals throughout your body instead of eliminating them completely. Cilantro, for example, can deposit heavy metals in your brain under those conditions.
But unless you have severe heavy metal poisoning they're perfectly safe and very effective. The only other caveat is that attempting to chelate heavy metals while you have mercury fillings could pull dangerous amounts of mercury from your fillings into your body.