many people正确，people本就是复数名词，而且是可数名词。
many和muc茑霁酌绡h都意为“许多”，但 many 修饰或代替可数名词（复数），与 few（少数）相对；而 much 用来修饰或代替不可数名词（单数），与little（少量）相对。
如：
Did you see many people there?
你在那儿看见许多人了吗?
Many poets have died young.
许多诗人很年轻就死了。
Do you have much money left?
你剩的钱多吗?
He doesn't spend much time preparing his lessons.
他备课不花太多时间。
扩展资料：
many和much的其他用法：
关于many of 和 much of：
(1) 其后接名词时，该名词通常应是特指的（比如有the, these, those, my, our, Tom's等修饰）。
如：
Many of the farmers grow rice.
很多农民种稻子。
(2) 如果名词没有表特指的限定词，通常就不用of。Many和Much的用法区别
如：
误：She didn't eat much of breakfast.
正：She didn't eat much breakfast.
她没有吃多少早餐。
(3) 如果用了介词of又没有特指限定词，通常是不可以的。
如：
误：Many of students have read it.
正：Many of the students have read it.
许多学生读过它。