Dynamis Bound! Rate your excitement level (If you're going)

[Toutatis]

For the MSQ, I'd recommend DPS. Tanks and healers will always have fast queues but DPS tend not to. So dump all that free EXP on them and grind out tanks afterwards is my advice.

You get more than enough xp to lvl up more than one job at the same time. You can easily pick 2 jobs, even 3 from the beginning. If not, with arcanist you get both a healer and a dps with scholar and summoner once you reach lvl 30 and they level up together. If the dps queues are too long, you can swap to healer. You can pick that and a tank role. Also, if you have xp to spare you can pick up extra jobs at lvl 50, 60 and 70 without any other requirement than the level.