Mostly tang, foxface, clown, raccoon butterfly and trigger.
I can't comment on the butterfly and trigger, but I would certainly be looking to use Chloroquine (Phosphate) CP from an online pharmacy (you can state you are headed to the Dominican republic for a few weeks if needed).
I've just come out of the back of a velvet outbreak which lost 40% of my stock including my favourites.
Personally I would get the largest QT tank you can and treat in there, using formalin baths as suggested. I have successfully treated your other fish with CP for velvet, although there are CP resistant strains (lets hope it's not one of these).
You will need to get some sort of biological filtration going as ammonia is going to be your enemy. CP is nice and simple and also means that you can treat with your current salinity.
Do not use copper with the current levels as others have pointed out, it will be toxic.
If you are running hypo in the display tank, have already removed inverts, algae etc, then I have seen people dose CP into the display - but it's NOT something I would recommend and you will have significant ammonia problems.
Another advantage of CP at this stage is that you can use Prime, Ammo lock or similar to help with the ammonia levels - something you must not use with copper as it will turn toxic.
Good luck and hope you can bring the rest through