I would make sure your aquarium is swarming with pods, has been setup at least a year and has a refugium before I would consider getting dragonface pipefish. They only eat copepods and if there aren't enough, they'll die.
We have two in a 40 breeder that's been established approx. 2 years with a medium cpr refugium and 40 lbs of live rock. Before getting the pipefish I had to sell my clam and green bubble coral as they're not compatible. The clam could close on a pipefish killing it and the bubble coral can sting them and have them for dinner.
My first attempt adding a dragonface pipefish to a 125, my cleaner shrimp killed it right when I added it to the tank. The shrimp grabbed the pipefish and tore at it's mouth immediately. That pipefish died
On your list of inhabitants, these are not compatible with dragonface pipefish:
bubble tip anemone
clam
Green bouble coral
In my experience, shrimp are unsafe too although mine was killed by a cleaner shrimp:
Fire shrimp
I have read not to mix clowns and dragonface pipefish, but I think the other fish on your list are safe.
I don't know about this coral as I don't have it.
Galloxie
You basically want to stay away from any corals that can sting, have long sweeper tentacles or can devour your pipefish.
Best of luck...