So I would like to make a lvl 5 charm focused sorcerer for an upcoming game which will continue on(smugglers shiv), I was thinking a teifling with the infernal bloodline but I may do a dual blooded with fey as well, I took fiendish heritage feat and rolled a +2 cha(mostly why I want to be a sorcerer to take advantage of the 22cha). Basically make people do what I want with ridiculous bluff, diplomacy and also charm person. Advice?
Undead and Serpentine bloodlines allow your charms to affect creatures normally immune to such tactics, crossblooded could let you pick them both, or mix one with Infernal.
I personally would just use Serpentine given the choice. It has good bloodline feats and spells for your concept, and the potential to allow for an improved familiar.
Suppose I could go wizard as well and just take charm spells, just seems less flavorful.
You want to optimize? Play a master summoner, and don't do anything special.
Also, read the player's guide for Serpent's Skull. It is a very enchantment hostile Adventure Path. As in, most enemies you'll be facing are mindless and / or immune to mind-affecting spells.
A dirge bard 2 / crossblooded (verdant / serpentine) sorcerer 1 will be able to enchant everything but vermin. I had that same character for a while on the same adventure, and I think it would've worked well if he wasn't eated.
Just to throw it out there we have a paladin, a Taldarian sword/shield twf, a witch, an inquisitor, and an archery ranger, I currently have a druid but I expect him to die after some poor decisions and at the least be shunned from the group.