I guess i can recommend only weapons you currently use.
Spear is a must have for me and it is my primary weapon through the whole game.
Frostner and Porcupine are also great weapons i use a lot in late game.

If i decide to change them, i would probably go with daggers and atgeirs. Daggers are cheap, fast and don't consume a lot of stamina. Atgeirs are great crowd control weapons and i think they are pretty cheap too.

However, you will still need blunt dmg for Bonemass and Stone golems, so i see it as mandatory to have one of the maces.