Truefitt & Hill Rose cream produces magnificent lather from a very small portion. Delightful scent too. Used by their Managing Director - his favourite.
I havent had a problem with any cream I have purchased and think they all lather rather easily. Noxema practically lathers itself
You want easy & great lather? Try The Body Shop Maca Root Shave Cream. Very natural and easy to produce a great lather!