How do I progress after ilvl90?

[Clouse]

Primals don't give much in the way of gear, besides the leviathan weapons and moogle ex necklace.

If you are decked in ilvl 90, the upgrades you are looking for can be found in second coil and soldiery gear. As for weapons, you can upgrade via coil turn 5, leviathan ex or continuing the relic quests to obtain atma/novus.

[Chihaya]

I think the first thing you need to do is to level up your subclasses.

Arcanist to 34 for Eye for Eye and Thaumaturge to 26 for swiftcast