Gladiator seems to be the best for dual wielding different weapons, when using the dual wield ascendancy nodes you get gives 20% more attack speed, 40% block, 30% more damage at enemy low lie and 20% more area which works with corpse explode and access to the dual wield node which has 60% increase global damage as its mastery.

I went with mace offhand because it gives lots of increase area to make my explodes larger and Vaal earthquake cause it has insanely high multiplier.

bleed also just uses whichever weapon has the higher damage.
You just need to make sure that the skill uses both weapon types. You can do stuff like nebuloch offhand here, its decent.

bleed glad also tend to have a lot of global phys damage that scales your corpse explode to the moon, note that corpse explode has x2 the radius of herald of ash so its low key large and offhanding a corpse explode mace will allow you to cut pride sublime and use determination or other things like sublime haste. Mace also gets enchants like block and 30% extra phys as chaos which also scales your explodes as increase phys is counted before conversion you could also do instant leech enchant with the offhand while having normal leech in main hand.

current pob https://pobb.in/kp7cy7NukN9S I think the bleed damage is around 3.6m to 4.6m. pob is really buggy with dual wield dps and vaal eq.

Kinda strange we dont see more dual wield glads.