There are so many Sushi Sho schools and Sushi Sho style inspired restaurants in Tokyo now. Sushi Sho Masa is the most popular with overseas visitors, as Masa san speaks fluent English. Saito san did some time in New York previously and also speaks good English.
Some of Nakazawa san’s disciples took on their own disciples, who went on to open their own restaurants, at least one of the second generation disciples got a Michelin star (Sushi Sho Saito’s disciple who opened Fudomae Iwasawa comes to mind).
My review of Takumi Shingo (visit #2) from 2017