Don't be nervous! The shows are fun! Here are two that are easy, fragrant, and bloom more than once a year and are in the oncidium family:
Burr. Nelly Isler 'Swiss Beauty', onc. Twinkle
A small, fragrant den: dendrobium oligophyllum
Some other easy ones: brassavola Little Stars or brassavola nodosa, Maxillaria tenuifolia, angraecum didieri
Good luck and have a good time! If you get something on impulse, just post and ask here.