First could be A. valida or A. nana, as well. Needs to develope. A. nasuta typically has more distinctive corallite lips, but not always. Great polyp colour! Wow.
The second one certainly looks like A. sarmentosa, but too small to be sure.
The third beauty belongs to the echinata group for sure. Exact species is tough, but A. echinata itself in all probability. Again, needs to develope.
What I find difficult in IDing frags is we have no size reference and the final developement of the coral may be quite different than in a frag. Table types develope various forms within the same coral, depending on their position in the colony; i.e. on the edge, in the middle, primary or secondary branch, etc. This is not apparent in a frag, but may be species distinctive.