Burgerstrasse
Burgerstrasse is another solid Goldies Smashburger copy (cool for them to be the gold standard) with two shops so far, one in Wedding and one in Moabit. They also use the famous Martin's potato buns, but the slightly bigger version, making for a slightly more filling meal. Consistently delivering a quality burger, this place is not to be dismissed.
If it's a smashburger you're craving and this is your area, this is a great option.