A halberd is a two-hand weapon. I don’t think you could effectively use it with a buckler.

For example:

Viking age: spear, axe, sword, mail, shield, helmet – you could do axe and shield.

High middle ages: pole weapons, lances, maces and hammers to deal with plate armor, longswords were used mostly against lightly armored infantry. There were special techniques to stab through the joints in the armor, but they could not cut through plate.

Renaissance: black powder muskets, pistols and cannon, early basket hilt swords, rapiers and cut-and thrust swords, pikes, half-armor – usually, chest, back, thighs and head were covered, but the rest of the body was left bare because armor heavy enough to stop a musket ball was too heavy to wear all over your body, so only the vital bits were covered.

I hope this helps.