The best replacement for mafia is yakuza.

The best alternatives to mafia are rated as following:
★★★★★  yakuza
★★★★★  ninja
★★★★★  mob
★★★  kkk
★★  gangs
★★  cartel
★★  mafia 2
★  italian mafia
★  godfather
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★  street gangs
★  cosa nostra
★  gangster
★  gta
★  triad
★  vory
★  knife party
★  mexican mafia
★  mafia
  dipset
  illuminati
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  lipstick jungle
  werewolf
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  hells angels
  russian mafia
  bone thugs
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  very
  gangs de rue
  triads
  diplomats

Your alternative for mafia is not listed? Suggest!
Speaking about mafia, one probably shouldn't forget about jay flava.

Other search terms related to mafia and their ratings are:
★★★★★ jay flava
★ lil kim
You have in mind a companion for mafia and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of mafia in all years. Click on graph for more.
mafia
yakuza
ninja