I know a boy studying in Shenzhen. They have to recite a lot of model passage. He can recite one piece after reading thrice, he told me.
So I bought in Shenzhen model passage books. There are a lot, but in simplified characters. Or else I always took the books containing passages from students issued by schools in school visits.
But these passages are boring. It is hard to let my son read, not to say reciting.