There is not really one host hosting anemone that dosent move.All of them move so that narrows things down quite a bit.A sand dwelling anemone would be better as they dont get into the rocks and tend not to move very far.So a Sebae,Carpet,or Long Tentecal Anemone would be you best bet.However,all of these anemones get VERY large and grow very fast.The growth rate can be slowed down by how much you feed.
How big is you tank?Also what type of lighting do you have?
Thanks,
Austin/clowns101