Questions on training extra classes

I have trained up to a Warrior and I have dabbled in a few other classes, but I really want to train up a Summoner to try it out. However, since I had played several other classes up to near 10 or above, I don't really have any quests that I can still do for my Thaumaturge and Archanist. I also don't really want to make a new character because I like my name. Does anyone have any tips or tricks they can share to level up to 16 so I can start doing dungeons since I heard that those give really good exp now.

Hunting log if you haven't done it already. Guildhests if you haven't done them yet - do the daily roulette too. Leves if you aren't using them for DoH/L. Fates.
That's about it.

Hunting log and Fates around your starting area are the way to go to reach a level for dungeons.

Thank you very much for the advice, I haven't played in a while and I'm fairly new so I'm not exactly sure what the daily roulette is but i have heard of it. I actually completely forgot about the Hunting Log so I will definitely do those. Again, thank you very much for the quick reply.

Hunting Log and Class Quests will take you 80% of the way. Do a Roulette or two (accessible from your Duty Finder) and you'll be golden.