| DeathlessOne |
If you are trying for PFS legal options, your best bet is potions of natural armor or a friendly spellcaster. Most other items that are available (but I'm not sure are pathfinder legal or not as I do not play PFS) are usually only static bonuses or use alternate scaling rules. I do know that magic item creation is not PFS legal, so you don't really have an option for improving those static bonuses.