As per a recent timeout article. They look at "51 coolest neighborhoods..." but they do the World. I've stripped off the ones in Europe.
https://www.timeout.com/travel/coolest-neighbourhoods-in-the-world
Agree? Disagree? Favorites they didn't mention?
The ones for Europe are:
(RS site strips off the leading number and assigns it's own in order)
Cais do Sodré Lisbon, Portugal
Cliftonville Margate, UK
Cours Julien Marseille, France
Shawlands Glasgow, UK
Neukölln Berlin, Germany
Walthamstow London, UK
Sants Barcelona, Spain
Rione Sanità Naples, Italy
Barrio de las Letras Madrid, Spain
Vesterbro Copenhagen, Denmark
Northern Quarter Manchester, UK
Letná Prague, Czech Republic
Noord Amsterdam, Netherlands
Kelham Island Sheffield, UK
Pagrati Athens, Greece
Haut-Marais Paris, France
Moda Istanbul, Turkey
Stoneybatter Dublin, Ireland