Can only see one picture. It is a warm growing hard-cane Dendrobium that needs a tidy up. Doesn't like night temps much below about 55F and needs to grow in "summer" and flower in "autumn" or "winter" after a slight cooling down.
Exact culture might depend on how far you are from the gulf stream....Heated glass-house orchid here.
Needs to be staked vertically and tied to keep it tidy. cut off any dead growths at the back, but be aware that you need to keep 4 or 5 growths plus the growing lead.
Probably needs new potting material and repotting. Maybe just do the tidy up for now and repot in " Spring" but the action you take depends on your micro climate.

The leggey stalks are actually elongated bulbs, which on a
dendrobium are called canes. The reason some canes have leaves and others don't is because dendrobiums are deciduous, meaning they drop their leaves. Some lose them every year, others every two years or so. Don't cut off any of the canes as they can rebloom. You can cut off the dried brush, stems left over from blooming. Whenever you
repot, use the smallest pot possible to accommodate the roots as dens bloom better with tight shoes.

Seems to be a "common" evergreen or phalaenopsis-type hybrid denrobium. (The deciduous types are commonly the nobile dendrobiums that form canes in the summmer, then need a certain amount of winter chill and bloom in the spring.)
The plant looks leggy because it might have had a tendency to be under shade or "stretched" to reach adequate light. You can tidy up the plant by staking it and wiring the canes. As previously mentioned by others, dendrobiums do best when grown in a tight container: not overpotted. Growers often pot them in heavy clay pots because the plant can become rather top heavy. IF you live in S.W. Florida, I would stay away from bark mixes (they rot easily in your climate). Plant in volcanic rock, clay pellets, or a mix of tree fern.