So-dong, Dal.Komm and A Two some Place

At Sodong there are a few coffee shops.

In the building of Beverly Hills Waterfront is Dal.Komm Coffee.

Building Beverly Hills Waterfront

At the right side (in a new place) A Two Some Place just opened.

Third floor, with terrace

And if you like Starbucks, you can go to the Daemyung Resort, the Starbucks is inside the building.
Those places are all along road 14 from Jangseungpo to Nambu.