You can’t expect to find everything in the centre of town, so hop on the metro and get yourself to 2D2Dspuma. Just five stop on the yellow line from Passeig de Gràcia, it's definitely worth a visit if only to see the hundreds of bottles they stock from all over the world. They also have five beers on tap, which are rotated regularly, and they serve up burgers and patatas bravas, so you don't have to worry about stumbling back to the metro. They also offer courses on how to make beer at home, using four very simple tools. Happiness is a thing called beer.