Just about any PCA or OPC church is a good bet as far as Presbyterian churches go. PCA churches tend to be more modern, are more likely to have contemporary services, casual dress, etc. OPC are much more traditional. Doctrinally they are indistinguishable as far as I can tell. The PCA is bigger, so you're more likely find a PCA church than an OPC.

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Mason
Member, Redeemer Presbyterian Church (PCA)
New York, NY

"Come now, and let us reason together," says the Lord, "Though your sins are like scarlet, they shall be as white as snow; though they are red like crimson, they shall be as wool." - Isaiah 1:18