I have read several articles as a part of my learning where I found ambiguity in the usage of many and much.
Like, I know much people who have a knack for words or
I know many people who have a knack for words
According to you,which one seems more appropriate?

"much" is for singular nouns and noncount nouns
"many" is for plural nouns
"people" is a plural noun, so "many people" is correct.