Ohh.. Bill's right, F.benjamina are considered trees. Here they are locally known as 'balete' and grow as thick as five people encircling it with arms wide open.
The other two i mentioned are the only trailing members of ficus family i know that are readily available in plant nurseries around the world. They tend to grow rampantly though so hard pruning may sometimes be necessary.
There are smaller, bonsai-trained varieties of benjamina like 'monique', 'starlight', 'tree of life', 'Isidora', 'midnight', 'exotica' and a variegated version of 'monique' but those require bright light.
Don't worry about leaf drop, usually the broad-leaved types do that more than the shrubby type.