For our family, Wadasuke Seisakusho's Cooking & Serving Spoon is a must-have item for serving. We use the S spoon, and the Ginza Showroom staff uses the L spoon.

Wadasuke Seisakusho's Cooking & Serving Spoon S
https://www.shokunin.com/en/wadasuke/spoon.html
Hakusan Porcelain's Hirachawan ST16
https://www.shokunin.com/en/hakusan/hirachawan.html