Monberaux and the weekly gil fee.

Funny enough the healer I use most isn't listed there

I use Monberaux to compliment my Apururu (u) trust but it depends on the battle you facing. I do have a standard set of trusts I get out usually but I make sure I have an "old skool" balance to my party (tank, healer, dd, etc). A lot of people also use Sylvie (u) but that's personal preference to your party's balance. It's good to experiment with what works best.