I am bowling right now. But #7 is a complex Cattleya hybrid. It will be nearly impossible to get an exact ID. But I will give it my best when it is fully open. Take images straight on.
Number 2 is indeed an Oncidium. It is a complex hybrid but give me a little time tomorrow on my puter and I think I can get you a name.
Oops, #1 is a Wilsonara maybe? Not sure but I hope to find it.