Out here, far beyond the rim of the urban melting pot, I had expected to find a traditional, native village.

With what else can I replace "rim"?

You would need to replace the whole metaphor really; pots have rims. Or possibly lips, but that doesn't really work in your sentence. I suppose you could use edge but the metaphor is weakened.
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Does the original sentence sound really odd? I think it's a good matephor!

The original sentence is fine. It is a good metaphor.
Thank you, nona.Emotion: smile
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