"Pet nat" enthusiasts, this one's for you. This British-run shop sells an intriguing mix of small-batch natural wines, craft beers and vinyls (hence the name). The owner is happy to advise you on the best bottles depending on your budget or the occasion you're buying for. It's in an authentic, un-touristy spot, so it's a great area to explore after you've stocked up on bottles.
22 Rue du Ruisseau, 75018