The fifth is a Phalaeonopsis. Hard to say which one exactly as there are sooo many different hybrids out there that look alike. Phals like warm to intermediate temps, and not so bright light, though I'm growing mine brighter than most. Overwater is then #1 killer of these guys. They get root rot pretty easily. Put a bamboo skewer down in the middle of the pot and leave it there. When you think it's time to water pull it out and touch it to your wrist. If it's cool to the touch wait a day to water.
Colmanara (now renamed Odontocidium
) is in the Oncidium alliance and likes bright light, intermediate temps and regular water and feeding. They don't like to dry out completely. I have a Colmanara Wildcat 'Carmela' that gets watered twice a week even in the winter.
Dendros also like high light. Yours look like phal type dendrobiums. They like to be grown in warm to intermediate temps, regular water and feeding. They object to being moved around. Once you find a spot they seem to like leave them there. Many say that dens don't like being repotted. That has not been my experience. I repotted two in the middle of summer and they are both in bud right now.