lvling new class question

[ryouma17]

i havent played in about 2 years, i made to alt and i been messing around on it iam trying to get all classes to 16 so i can lvl them via roulette however was wandering the fastest way to get them there, is the fastest method still spamming leves at +4 or have they introduced a much faster method cause grinding leves is making my mind go numb

[Schan]

I would advise you to focus on one job till about level 47-50.

At level 17 you unlock Palace of the dead which gives decent exp but it can also be mind numbing if all you do is spam it and at 47 you unlock squadrons (if you leveled you Grand Company) which you can take into dungeons which also give decent exp.
You also unlock beast tribes at 50 i believe.

Until then you're stuck with fates and daily roulette things.

edit: there are alternate ways of leveling your lower level classes but it requires you to have 1 of them at higher level which is easily done with MSQ experience.

[ReviaInfantry]

Hunting Logs and FATE.

By the time you are moving into hunting log 2nd list, you probably have enough to go into lv16 dungeons.

Leve-wise no comments, I used to for non combat purpose only though. Not sure its worth it.

Oh, and guildhest roulette, which you will forget after ARR tier (or even before that).