torrent-lab.net is a good site for Xbox. Most other sites I know of are Private trackers and are invite only. So the registrations are closed.
just use bitlord and search for specific games through it,then you will get the best results with its capabilities
I would suggest not to use Bitlord or Bitcomet due to most trackers banning them from thier sites. I belong to 5 private trackers myself and all them have banned the use of bitlord and bitcomet clients. I use Azureus or uTorrent.
