The kinetic tech was dread guard relics, for arkanian you want energy tech as kinetic tech does not exist. In the future you want whichever one is tech and benefits from armor piercing so that will be energy or kinetic.
*edit: I guess I can't say for sure the kinetic/energy will always be better than the internal/elemental. Doesn't matter, the answer to your question for arkanian and underworld is energy tech.