Hi there!
For wine bars in Porto, there are plenty of places, and they’ve been popping up more and more in recent years. I really like *A Cave do Bon Vivant*—it’s a wine bar and restaurant opened by French speakers a few years ago. When you love wine *and* love talking about it, it’s always better to do so in your own language!
Otherwise, I discovered *Wow (World of Wine)*, a whole cultural space dedicated not just to wines (Porto and the region) but also to chocolate and other local products. To be precise, it’s not actually in Porto, but you just need to cross the Douro to get there easily. You’ll find all the info you need at this link:
https://bonjourporto.fr/world-of-wine-porto/ !