Here are some off the top of my head...
(I still use some of the 'old' names)
Neofinetia falcata - small with great scent - hybrids of this are also scented, and relatively easy to acquire/grow
Vanda cristata
Ascocentrum ampullaceum, curvifolium, garayi, christensonianum, and miniatum
Vandopsis parishii
Vanda lamellata
Trichoglottis brachiata