I have always found this site quite good for double stars, basicly
it lists the easier of 33 doubles found in each constellation. Mostly
for northern hemisphere observers, but there are tons to be nab
from the southern hemisphere. Star charts are supplied.
http://www.carbonar.es/s33/33.html or
http://www.s33.org/
Click on the link in the upper right "Observing Projects" a list of
constellations will appear. Click on one it'll take you to the list
in that constellation.
hope this helps, if it does enjoy
regards,CS