If there’s loads of you and its an office/work type night out then you could try Albert’s Schloss which is massive and will be full of people on works do’s, Christmas Parties and so forth.
Its just down the road from Blues Kitchen so you could use one or the other as back-up.
Fair warning, there’ll be a queue and also whilst they have live music on I think it’s often some sort of brass band/jazz/burlesque/drag/something or other so that may appeal or it may not.
If you’re at that end of town then Yes, Exhibition, or Refuge could be worth a look and a bit more discerning than Albert’s Schloss but depends on what you’re after really.
If you were happy to just go to some bars then you could got to Stevenson Square in the Northern Quarter and just pick any of the millions of bars around there as well. They’re smaller but there’s a venue nearby called Mint Lounge which, depending on what’s on, would accommodate a large group of drunk work-party people.