Hi, Manda
You can find links to many choirs in Zurich here:
http://www.stadt-zuerich.ch/content/...ks.html#choere
Here is a listing with a short description, rehearsal times, etc.
http://www.stadt-zuerich.ch/content/...sen%202008.pdf
You are right, joining a choir is a perfect way to meet people with a common interest, and at least in my choir it is no problem if you do not speak German or Swiss German - notes are international.
Have fun
Idgie