The main colony in question looks more like Goochster...but the video aren't that clear / sharp so it's hard to be 100% sure.
Next are definitely yellow polyps, gorilla nipples, the colony with sponge on is called spooky palys. There's I consider as pest since they will grow everywhere. I have a few in my tank and can't seem to kill them fast enough.
The one you called Red People Eater are definitely not Red People Eater. They are either ATL triple red or kedds red. Again can't be 100% sure due to the clarity.