I can't think of any recent popular films with gangs. None of the films on that Wikipedia article between 2000 and 2019 are not popular at all. I never even heard of most of them.
The one known film in that article, 2019's Uncut Gems, doesn't have street fighters. It is about a morally corrupt jewelry seller trying to pay off his gambling debts.
Fight Club was not really all about street fighting; it was about becoming anarchists and a man dealing with inner demons.
Dragon Ball recently had a revival series called Dragon Ball Super, which was popular among new and old fans.
As for the Street Fighter and Mortal Kombat comics, none of them were ever popular. They were treated as inferior video game tie-ins.
The most recent popular media with gangs are the games Saints Row and Grand Theft Auto. However, Saints Row's popularity is owed to the outrageous, over the top gameplay and story, while Grand Theft Auto is popular for the characters and the diverse gameplay.