If third-party is allowed, Swashbuckling Adventures has the Giant feat, which lets you count as one size larger when considering weapon categories or checks that have modifiers for size (such as Grappling, Bull Rush, etc), along with +5 ft. reach and +1 attack/damage rolls.
However, it has another feat as a prerequisite, and both of them can only be taken at 1st level, so it's kind of wonky, but then a lot of stuff from SA is strangely balanced. One base class, the Wanderer, has Evasion at first level.
Yeah, wonky.