So I've never been a fan of the sickly sweet oatmeals and other western style breakfast cereals, especially those with lots of sugar, so I've started recently getting into savory oatmeals and other porridges. My favorite so far is using a base dashi stock, miso paste and chili oil alongside some chopped light vegetables such as kimchi and scallions (water spinach is also good when finely diced).
Rice porridge and millet porridge is also very nice. Any porridge you can put in the fermented bean curd and the pickled mustard green.
Natto is one of my fav additions and is a great protein boost as well as giving some funky cheesy notes without using cheese