Best food steamer

I steam my food for health, i.e. preserving nutrition density, cleanliness of my food, taste, and efficiency in meal-making. This is my honest review of what I regard as the best among best reviewed and tested steamers. I include non collapsible and collapsible steamer baskets, electric steamers, multicookers with steamer functions. To finish, I will compare these types of steamers to my all-time favorite choice for steam cookers.