I'm a pikeman and i don't know what to get. I have about 650k to spend+ some green mats.
Swadian halberd is nice snake spear and sarissa also
I would go with a swadian halberd or snake spear/halberd but a swadian poleaxe is still very good and is much cheaper
If you want a long slashing weapon go for a Swadian Poleaxe, but if you want to have a shorter one go for the Snake Halberd/Spear whatever you prefer.
But if you really want to have good long weapon, go for Sarissa.
It is expensive, but definitely worth its money.
Hope that helped a bit.
Thanks for the help guys!