Holy Strategist: Red Knight Cleric PRC
Vengeful Redeemer: Cleric of Hoar PRC
A good PRC for a warrior using a two handed weapon who isn't wielding an exotic weapon and who isn't a barbarian.
A PRC for an Arcane Caster that makes the familiar both powerful and survivable.
A PRC for an Arcane Caster that does for Item Crafting what Incantatrix does for metamagic.