They are kind of small to tell growth patterns yet, but the third pic from the bottom with the two small one, could possibly be something like Miami Orchid Staghorn(these normally come from places like ORA or The Coral Farm), the other one looks like it could possibly be A. secale, IDK for sure, you already know the Millepora, and the other(4th pic from the bottom) looks very similar to A. azurea. The last one, I can't tell yet, too small. Good luck with these guys, and for 5-10 dollars, you got some good deals for a LFS.
Matt