Aperitivo (Bars) in [Rome]

Looking for fun places for traditional aperitivo in Rome. My friends who live in Rome have their favorite spots near where they live, but don’t know where to go in the more central (read: touristy) areas of Rome. We wouldn’t be looking for lots of eats (though understood that cocktails are usually served with some snack), as we will be going for dinner, but rather typical Roman spots for good cocktail/glass of wine that aren’t tourist traps, but might be in tourist setting, or interesting for some tourist reason.

Hope this makes sense! And thanks!