Still have 1 selection to make on the Glint banner, I think i've narrowed it down to the following:
Elarra Glint - Have USB1/BSB/LMR
Tyro Glint ( 2k heal + esuna) - Have USB3, AASB, LMR
Terra Fire glint - Have AASB, w-fire LMR
I like Elarra glint cause it's more healing in a pinch, but I'd venture to say USB1 still does a phenomenal job of keeping up with heals.
Tyro's glint gives a mediocre heal, but i think there's utility in the group esuna as it serves as a slot saver for ultra cure.
Terra's glint will give me a cheaper and more stable source of en-fire.
FWIW I grabbed Squall's en Ice glint as he is near maxed out for me, ice wise at least.
I would definitely go Terra. That said I haven't looked at what Shiva throws out but I've had great luck with enfusion glints-aasb on 6*s including wind Terra.