Sorcerer Archetype

[Chris Ballard]

Is there one that increases the number of skill points gained at each level?

[The Sideromancer]

Technically, Wildblooded is an archetype, Sage focuses on Int, thus indirectly being an archetype that increases skills. However, I have a feeling that this isn't what you're interested in.

[David knott 242]

The Scourge archetype has 4+Int mod skill ranks per level, but it is 3rd party in case that matters. It also trades spells for BAB (using the progressions of the Bard class).

[Chris Ballard]

I do need to keep class features focused on charisma. Trying to find a way to get the base number up to, at least, four.

[Saethori]

Be a human. Throw your favored class bonus into Skill Points. Avoid dumping Intelligence. Lobby for the background skills variant. There are a few ways to get more skill points a level.

Archetypes that increase skill points directly are few and far between. There was one that David mentioned, but other than that you have to do it the old fashioned way.