With Espirit gain the fastest i have gained Espirit has been with Blm.

I have partnered with drg,mnk,sam,smn and brd for a few runs)3+ at least) checking my rate and blm just gave me so much, now could be complete rng luck but it has stood out and i got to 8.65k with them on Titania.

Now i've yet to be able to partner with nin,mch and rdm for more than 1 run so i want to do that before final verdict but it certainly feels like certain jobs give more than others.