Is it correct to say? Come to here.

No, it isn’t. You generally say, Came here and not Come to here. There are a number of common words in English, such as here, there, home, up, down, upstairs and downstairs which are not preceded by the word to.

The children ran upstairs/downstairs. (Not ran to upstairs/downstairs)

The CEO asked us to come here. (Not Come to here)

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