GWA, HQ Barcelona & Uncle’s Farm are some of the best & most consistent social clubs in the city.
Here’s another thread we have going on piattella from Uncle’s Farm:
I’ve got a ton of restaurants & bars to recommend aside from these depending on what you’re after.
Barcelona is extremely accessible via metro, so I don’t recommend taxis, etc. for getting around. El Born & the Gothic Quarter are some incredible areas to wander around.
You’ll want to book any tickets for anything in the city about a week out. Sagrada Familia is worth the tour if you can get a time slot when they open or the early afternoon when the stained glass is lit from both sides. If you’re opting for a tower as well, go with Nativity.
Montjuic has beautiful views of the city, the port & the Mediterranean, but make sure you get there early because the aerial tram line gets insane quick.
Parc Guell is beautiful as well.
There are a ton of day trips you can do to places like Girona, Sitges, Tarragona & Montserrat.
Some food from Madrid if you make the trip. It’s about two & a half hours by train, so not really a day trip.
Andorra is also about two to three hours away.
@AgTonik spent some time out there so he might be able to chime in & @The_Modern_Extractor is a great source of knowledge on the city as well.