Where to go next ?!

[einschwartz]

I'm in the process of unlocking hunts now, I neglected to do it early on & wasted maelstrom seals by hitting the cap, wasn't really paying attention while working through the MSQ, but should have them done soon along with a few more beast tribe quests, at least then I can use those for my alt.

I hope you are aware that Hunting Logs (H) which rewards you maelstrom seals is different than Clan Hunts. The latter rewards Allied seals (ARR) and Centurio seals (HW and SB) which you can trade for riding maps (increase mount speed) on top of gear and other stuff. If you already do, that's good. Just a reminder you in case you didn't.

...no idea if the drop rate of those crystals gets better later in Eureka or when in a party, but it seems like there's better way to spend my time & make better progress than there, I could be wrong though..

Don't be shy to shout for NM train invite where people in groups spawn bosses and kill them. It is the most effective and fastest way to gain EXP, lockboxes, crystals and even Genesis tomes! Although you won't receive the last two if your level is lower than the boss. As you get higher, those crystals will come raining towards you. I got enough for two weapons by the time I reach elemental level 20. There are no level restrictions when to join the NM party, but it is better at level 9 where you can attune to aetherytes for easily teleports. If not, higher level party members often are willing to give you a ride on two-seater mount. Completing challenge logs also gives a good chunk of EXP.

This guide explains very well about what you need to do in Anemos.