Newly vegan.. Greek yogurt alternative?

Hey guys. First off, thank you to this whole wonderful vegan community on reddit. It's been hard making this transition (I know no other vegans here in Texas), and y'all have made me feel much less crazy for doing this.

Anyways, I'm trying to cut all the dairy, but not having Greek yogurt is killing me. Used to put it on everything, and I mean EVERYTHING!

Does anyone know of a good Greek yogurt alternative? And also, what about probiotics? Is there an alternate for that as well?