Forgot to add my comments.
Barcelona is a beer city with craft beers easily found.
BierCaB is a must. We sat with gentlemen from Belgium at the community table and some others from the US on a beer tour.https://biercab.com/en/
La Menuda is another must for the beer lover. Service was on the slow side, but the food was great as were the beers.http://www.lamenuda.es/
There are several breweries/brewpubs in the area, but we spent more time at the sights as this was not a beer centric trip. Often the hole in the wall place would have something local and if all else fails order a pitcher of sangria.