I have had to moved more corals from clowns keeping them closed up trying to host in them then from wife's Carpet Anemone... Everything from Duncans, Sinularia ect... They have frogspawn and hammer in the tank but don't try and host them... Clowns can be a real pain
Clowns will try to host anything. Especially what you do not want them to. Like powerheads and overflows.
Skunks will look for a host regularly.
If you have a good stable environment, and you have ever thought about an anemone, I would try one at least 3 times bigger than she. She will find it quickly. BTA is easiest for beginners IMO.
Anemone's can be almost as big as pain as the clowns or even bigger... ... Maybe trading one problem for another... When they go on walk about they can do a lot of damage...If you try an anemone don't glue down corals, make sure your powerheads have shields on them... And be prepared every once in a while to move things out of their way if they go on walk about...
I have had good luck with btas. They rarely move for me. I know others have issue with them, but mine stay within a few inches to where I introduce them. Lucky me!!!
I took a single rock, cut it in half to create a flat bottom, cored out a 2" hole and then molded a nice round cup out of Nyos reef cement that I had on hand. This rock is by itself surrounded by sand and affectionately named nem island. I placed a Kessil A80 over it scheduled to come on first and go off last with my main lighting. My RBTA hasn't split or budged since the day I put it in the rock. I don't feed it.
Depends a bit on the clown species but, yes, they will sometimes view euphyllia corals as an acceptable host. Best is to pair clowns with a naturally occurring host anemone, though I appreciate that this is not always practical.