depending on the species of orchid, they're usually not that hard to take care of.
MOST of the orchids we keep as houseplants are epiphytic, meaning they need LOTS of air flow around their roots. so get some bark chips. they should have "orchid bark" at almost any
plant store. it's out of season here, and they STILL have orchid bark at all the
plant stores.
any porous pot will be good. you can try taking a normal terracotta pot and drilling some holes in the sides towards the bottom to make it into an orchid pot. the holes allow more air flow. make about 1/2" holes if you do go that rout.
make sure ALL the orchids are sitting over a tray of pebbles and water. they like humidity. and they like lots of indirect light.
and they need orchid fertilizer!
good luck. someone else can probably tell you more. that's all i know.