Outdoor Orchids in SFV

[Phyte]

I'm not new to orchids, but have always grown them indoors under lights. I moved from the East Coast to the San Fernando Valley in California and find myself with a small, Eastern facing patio. The patio is completely open to the sky but due to the buildings on either side and a large tree only a small portion gets direct sun.

I'd like to grow some orchids outside but have no idea where to start. I am completely out of room indoors so would need something that can stay outside year round. I believe I am in zone 9a. I'd love suggestions, especially if you live in the area and have success with a particular orchid. Thank you!