FOUNDATION HELP (DRY SKIN)

So I've had really dry skin for a while now and I still can't seem to find the right foundation for me. I'm sorta light skinned but also yellow. I would say I have combonation dry skin. And the dry skin gets really bad sometimes. It always ends up looking really flaky when I put on foundation. I do exfoliate but it doesn't seem to be cutting it. What do you ladies suggest for foundations and what to exfoliate with??? I'm in major need of some help.