 If you liked Gangsta. |  ...then you might like Bungou Stray Dogs 2nd Season |
Bungou's 2nd season and Gangsta both focus on gang wars which center around multiple gangs trying to be the strongest
report Recommended by Short_Circut
Both are mob themed stories with lots of action especially supernatural action and the inner workings between the gangs.
report Recommended by Disapeared_Ghost