Really love this thread, wanted to make a couple suggestions:

Fighter with a Sorcerer dip isn't nearly as good as Paladin/Sorc, but at high levels a quickened GFB/BB can give some significant bonus damage. That combined with Shield (and a 1-use advantage if you pick Wild Magic) gives the Fighter several good benefits.

Monk / Spores Druid is another good combination thanks to SADness and the extra d6 damage per melee attack (kinda like Hunter's Mark but it gives temp HP as well).