Other than "Gangsters 2," the genre seems pretty dry. In my opinion, the only game remotely like it is "Gangland" for the PC. Beyond that, you have FPS titles, like "Mafia," but that game is pure shooter. "The Godfather" is a little more sim-like in the sense you have a territory map with gangs of different colors, but it's still third person, similar to Mafia.
There's another game called "Mob Rule," but it looks awful. I could be wrong, I've never played it: http://www.gamespot.com/pc/strategy/mobrule/index.html?tag=gallery_summary;title
Btw, while you're at it, could you respond to my other topic about jailed leaders? I'd wait for others to respond, but obviously this board is dead: http://www.gamefaqs.com/boards/genmessage.php?board=75245&topic=53108119
I wouldn't recommend gangsters 2 its just a shallow version of 1. Gangland like he said might be considered like it, but its direct control instead of just setting up phase weeks. Sadly Gangsters seems one of a kind there really isn't many companys who felt they should make more games like this and i guess this genre of crime turned based just died.