Duncans, clove polyps, blastomussa, micro lords, zoanthids, turbinaria (the larger polyped variety that is suspected to be in the Duncanopsammia genus), and candy canes are a few that come to mind. So long as all the LPS on this list aren’t touching anything else and have at least a centimeter of clearance, they won’t usually go the attack, the softies mentioned are slightly capable of chemical warfare but they won’t dissolve corals overnight, if there’s an issue it’ll be a slow decline. Most softies can touch each other without much issue, mushrooms being the most aggressive/most sting happy, but even then they aren’t too bad with most softies (I’ve got Zoanthids, cloves, a Kenya tree, and some Rhodactis mushrooms in a clump all touching each other, and they’re all super happy, extended, and growing)
