Not having a microwave makes it really difficult to eat crap. All the crap comes packaged for microwaves, and when one doesn’t have one it changes one’s relationship with entire stores. Trader Joe’s used to be awesome! Now it has strategic things it does best, but most of the stuff takes five times as long to prepare sans microwave.
There might be something there. As for rice, most any rice will do. We get big bags (5 or 10 pounds) from Koreana Plaza in Oakland, or Mitsuwa when we visit. We go for paper packaging.
We have a bulk item rice holder from Muji that isn’t sold any longer, and it holds about 6 cups of rice. We fill it from the larger bag we keep in the freezer (along with our flour; we freeze a lot).