I have not found the rice washing bowls here that I have used/bought in other Asian countries. I just assumed Thais used a different method of washing their rice, but not sure what.
Style I am talking about that I think I bought at a 100 yen store in Japan.
https://www.amazon.com/Inomata-Japanese-Washing-Strainer-quart/dp/B00N2WERLG
I have a specific Japanese rice colander that only has holes on the side (got it at my local Asian supermarket for ~$3).
I like it better than using my mesh strainer because short-grain rice gets stuck quite often in the holes and this has fewer holes so fewer annoyances. Also I don't waste as much water.
I also use it to wash small fruits (like grapes, cherries, berries) and anything else that I think benefits from a little soaking first.
They also make another version with holes on the bottom as well as the side but I don't like it as much.
I use a rice washing bowl.