There are a ton of shield bashing feats that CotW implements. Also the gorum religious trait letting you treat heavy shields as light weapons. Might be interesting to play around with next. I wonder if a Holy vindicator can get enough feats to make it worthwhile; doubtful though since I'm imagining you really want the combat style stuff and extra feats like from a Slayer or Fighter.
Call of the Wild implements
https://www.d20pfsrd.com/magic/all-spells/l/long-arm/. Oh, 5 ft reach at min/lvl for a first level spell? My Bloodrager is already a persistent AOE now with just that, enlarge, and a polearm.
Metamagic rods with daze, entangle, and trip effects are pretty wild. My CMB is ass but toppling magic missiles seems like a pretty neat gimmick.
Speaking of CMB, there is some interesting stuff in there. There is a feat that if you just use a standard power attack it lets you perform a free trip action. I'm thinking of steering my duergar into a tandem tripping asshole with his dog.
Hurtful let's you take a swift action attack whenever you intimidate an enemy within reach. Seems like there could be some interesting shenanigans there since building around intimidation effects was already pretty strong.
A few more interesting teamwork feats, too. Swarm scatter gives you +1 AC for each adjacent ally with the feat. Bonded Mind allows hunters and summoners to share personal spells like Lead Blades with companions. Snap shot is not a teamwork feat but it gives a 5ft threat radius to ranged weapons.
The Furious Focus feat that was mentioned negates the AB malus for the first power attack. Pretty nice for low level power attacking.
Anyways, really enjoying the mod. I think I would be pretty overwhelmed if I used it on my first playthrough and I expect that eventually it will just "blank" a bunch of marginally useful feats, spells etc. But for a victory lap playthrough I highly recommend it.