It depends on the blend of juice that you are starting with, but it is hard to go wrong with Notty or S04. US05 is also good and and Brupak Ale yeast is great for cider. If you like it really dry then a champange yeast like L1118 isnt bad. I used that for years and its nice and clean, but most of my friends and girlfriend didnt think much of the hooch I made until I switched to ale yeast, which leaves a lot more apple taste. If you are looking for something in the semi-dry to semi-sweet range, you generally want a yeast with low attenuation and high flocculation.