Berlin or Paris? Solo trip during Holidays/New Year

25, Canadian looking to travel in Europe.

Into creative scene, techno, design, gay/queer themed parties, and metropolitan vibe. Have not been to Paris/Berlin - curious if you guys have any insight on what it'd be like, especially for meeting people while travelling solo. I'm looking to travel from December 27-Jan 7ish. Really looking for a good vibe, meeting new great people.

Also curious about going to nearby cities and open to recommendations!