What is a homonym for here?

There isn't a perfect homonym for "here" in the sense of a word with the exact same pronunciation and a different spelling. However, there are words that sound very similar:

* hear: This is the closest in sound, but it has a different meaning.

* hair: This is also close in sound, but again has a different meaning.

Depending on the context, you might be able to use these words as a close substitute.

Let me know if you'd like to explore other possibilities based on the specific meaning of "here" in your context.