Fermentoren Beer Bar
Halmtorvet 29C,
1700, Vestebro, København
Tel: (+45) 23 90 86 77

Fermentoren is a beat out basement beer bar in the trendy Meat Packing district of Copenhagen.  

There are about 60 densely packed picnic tables impeding one's entrance. Inside, fhe bar area itself seats about 30 in various configurations of mismatched tables and chairs.

Fermentoren has 25 taps of mostly local beer, as well as bottles and cans.
The kegs are continually changing, and thus so is the beer board, on which the beers are listed.

Fermentoren also has its own house brand of beer, brewed by the Dry & Bitter Brewing Company.

Middle of a Monday afternoon, they had a good business of locals and beer tourists. 

Anarkist Bar
Vesterbrogade 3
1630 København V
+45 33 15 10 01

Anarkist is a brewery in Odense, Denmark. This bar, however, is Anarkist's outlet, a pizza joint across the street from the train station.
Upon entering. One is at the end of a very large, three- sided service bar.  Across the entryway are restrooms and the to-go cooler, and beyond is the window to the pizza kitchen.
In front of the bar are several big, blonde, tall-style tables. The dining area is at the third side of the bar, and seats about 40.  
Anarkist has about 25 taps, mostly local guests. 

What's interesting to me is that Anarkist is tucked into an opening in the wall of the Tivoli Gardens, the world famous amusement park.
The park is lower so one can observe the amused patrons wandering while one enjoys several cold ones. There is an entrance from the park to a separate Anarkist adjacent.

Taphouse
Lavendelstræde 15
1462 København K
+45 8887 6543

Taphouse is a beer bar just off the busy tourist area of downtown Copenhagen.
They have 61 taps of craft beer; 6 from America, and the rest from nearby Europe.
They claim to have Europe's largest selection of craft beer.
It would not be out of the question for you to find some American microbrews such as, Sierra Nevada, Sixpoint, Founders, or Flying Dog,
Their claim to fame is that some of the beer on the menu is color coded - "pay for a small one, get a big one" - for Happy Hour.
It's not a big place, maybe seats for 25, with room for at least that many to stand around.