Most people won’t remember names of specific bars and clubs. This is something that is the least of your concerns during your trip planning phase. You can always ask around when you get there.

In Paris, the cheapest bar you will find is Syphax which is usually packed because of their specials unheard of in Paris. Normally a pint does not sell for less than 5E in paris, at Sphyax it’s 3. Shooters are 1.5E if I remember correctly. It has become really popular with students looking for a great cheaper night out.

In Barcelona, one of my favourit club is Pipa Social Club. This club is more than just a bar full of smoking pipes overlooking Plaza Reial. This second story “secret bar” has had customers looking down on unknowing tourist for several decades and is an unique experience.
You highly suggest you should go to this club

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NO SPAM LINKS!!

In Barcelona, my number one favorite bar you must visit is Chupitos. It’s always packed with young people and blasting music all night long. They serve over 200 different kinds of shots and prepare them in all different ways. For some of them they even light the bar counter on fire or make you roast a marshmallow over your drink. So much fun to go with a bunch of friends, the bartenders are so much fun and are some of the nicest. L’ovella Negra is another really good bar you should go to. The place is kind of like a cross between the famous German beer gardens and a medieval mess hall which is pretty cool. There are always energetic people there to party and particularly people who speak English.

I can really give you places in all the cities you are going to but honestly what really helped me find all these really cool places was going on this site “Party Earth – Europe.” They give lists of the hot places to go during what days of the week and in different areas of each city. I recommend checking that website out because it really helped me out. Hope this helps!