identify coral

Would anyone be able to help me identify these 4 corals? I believe they told me the green one was some sort of cabbage coral and the round mushroom looking coral is some sort of toadstool leather? (The other two I haven’t a clue lol) Thank you so much in advanced everyone I really appreciate...

🔍 Introducing IDMyZoa — A Community-Built Zoanthid Library (Early Concept Preview) Hey everyone! I’m working on a project called IDMyZoa, and I’d love to involve the Reef2Reef community from the very beginning. The idea is simple: ➡️ Build a community-moderated, Wikipedia-style platform...

So I bought some mushroom corals and they were connected to this drag plug. In the bag they disconnected and connected to a broken shell instead and seem happy. On the other side of the drag I noticed this tiny coral. Any help identifying it would be great.