So i got every crafting class to 16

[Hivernica]

I'd say:
Culinarian to 38
Weaver to 50
Carpenter to 50
Alchemist to 50 (for furniture only, put alchemist higher than carpenter on the list)
Goldsmith to 50 or blacksmith to 50 (for furniture, blacksmith first)
Armorer to 50
Leatherworker to 50
Culinarian to 50

If you wanna be a serious crafter, all classes to 50. I recommend doing them in batches. First I did culinarian, weaver, alchemist and goldsmith (for no reason) and got my artisan's spectacles with culinarian. Then I leveled carpenter, leatherworker, blacksmith and armorer.