Bogey sounds like a good pick.
That said, I don't think every single version of the Joker could be saved though. Arthur Fleck is WAY more sympathetic than most versions. The BTAS, and Tim Burton versions were canonically bastards even BEFORE they fell into the vat of chemicals, and no one knows if there's any truth to either of the Heath Ledger versions' scar stories. (Also, some versions of Joker might Alp, given his sexuality is... questionable)