I would really not recommend N. brichardi for a community setup like yours. They are Tanganyikan cichlids who prefer rocks, sand and a high pH, alkaline tank for best health. I suppose if you had only one of them it MIGHT work but it is probably not the best idea. They are marvelous fish, I love them, but prefer to keep them in species tanks or as single specimens with other Lake Tang species. Once they pair up they will literally own the entire tank for spawning. Their requirements are almost completely opposite of blue rams, and are much more aggressive.
If you move out the other fish you could get yourself a pair of them, which would be perfect for a 29gal by themselves (or possibly with a syno cat or a dwarf pleco). You would get 5-6 juveniles and wait to see if you get a pair, then you would have to return the others. They are often called the "convicts of the rift lakes" because they are relatively easy to spawn in aquariums. They will tolerate their young remaining in the tank with them for a while, too, if you have plenty of rocks.