Are there any One hand + Shield styles?

[Karse]

Im using a Scimitar + Heavy Shield.

Should I stack up more AC with Armor Focus and Shield Focus?
Are there any feats to help fighting like this?

[JamesTheDonkey]

Generally, a little more information would be helpful. Class, build, desired combat role. Anything helps, but in the black, here we go:

Shield-trained (Religion Trait, worship Gorum): Your heavy shield now counts as light, among other things. For 2weapon fighting.

Improved Shield Bash: Now you and whollop people and keep the AC bonus.

Two Weapon Fighting: Cause -10 to hit sucks. With this and shield trained, you are at -2/-2 with your Scimitar and Shield.

Shield Focus: +1 AC, and opens up Shield Mastery feats, like...

Stumbling Bash: -2 AC to enemies you bash. Fun fact, non-magical untyped penalties stack, unless they specifically say otherwise. GMs may disagree.

Improved Critical Scimitar: Keen as a feat. 15-20 crits are great. Specially when you have...

Bashing Finish: Free shield bash on crit.

Shield Master: You now have no penalties to fight with a shield. Plus your AC bonus counts as a weapon enchantment. EXCELLENT feat.

Artful Dodge: Congrats, you can now use Int to qualify for TWFing feats if you want.

I listed a few standard sword and board items. Slayers and Rangers are great for fighting like this because of their 6th level access to Shield Master.

[Karse]

Warpriest Str 16 Wis 18 Dex 12 Con 17 Int 10

[Chess Pwn]

There are some classes, swashbuckler, that promotes one weapon and a shield. It's possible to twf with a weapon and shield. But there's nothing to help for just one weapon and shield only for defense. It's just the trade off damage for ac. Wp is good cause divine favor and weapon specialization don't care about handedness and power attack is delayed bedside of bab so as to not be missing out as much there

[Karse]

Thanks all these ideas helped me to come up with something. :)