For cleaning corners and gaps where dirt easily collects. I found a cleaning product called "Smiko Brush around the kitchen" and tried it.
A product that includes two slender spatulas and one brush. Spatulas help clean areas such as refrigerator packings and sink seams, while brushes help clean small areas such as the back of tumblers and rice cooker lids. On the opposite side of the handle of each spatula and brush, there is also a "packing removal spatula" that is useful for removing the rubber packing of the lunch box.
When I actually used it for cleaning, the spatula for removing dirt has a certain thickness, so there is a neck that it is difficult to scrape off dirt in narrow gaps. However, it seems that it can be used for a long time because it is hard to settle because it is thick. One of the brushes is made quite thin, so it is convenient to clean various gaps. You will want to remove fine dirt that you usually leave unattended.
The "Smicco brush around the kitchen" is also attractive because it can be stacked and stored compactly. It is sold on various mail-order sites, and the price range is around 600 to 700 yen. Why don't you use it for daily cleaning so as not to collect dirt on small parts?