first one to the left looks like a
dendrophyllia coarctata
second one could be either dendrophyllia arbuscula or balanophyllia ponderosa or just a tubastrea sp. (common sun coral) can you post a picture with its tentacles ?
the last one is the only other one that has been offered, which is very new and not common in the hobby, i believe its dendrohpyllia coccinea.