The usual beer options can be found anywhere. There is also the dolo option, aka chiapalo. It is cheap and is fun to hang out at a dolo cabaret.
If you want something higher class, the alimententation across from the market directly opposite of the meat area has other things such as juices, wine, booze, etc.
For your nonalcoholic options, there may be nonfermented dolo available at a cabaret. The streets are also littered with people selling bisap, ginger juice, etc.
Le Flamboyant, the restaurant, is also the main nightclub in Gaoua, and as such gets going after 11PM.
