DSP created some good psionic races and classes for Pathfinder, all of them based on D&D 3.5. They are Open Source, although I think you need to make a deal with them to be able to use them in a PC game.

One race of interest from DSP is the Elan:

Born not of a mother or father, but created, elans were once mortal beings. Built by a shadowy council to live as psionically awakened superior life forms, elans are capable of sustaining themselves with nothing but the power of the mind. Elans are no longer true mortals, having been unfettered by a secret ritual that created this new race and reborn anew, with but wisps and fragments of memories of their previous lives. Incapable of breeding, elans expand their numbers by choosing members of other races, most often humans, and transforming them into new elans. This would pose a problem for the continuation of the race, except elans do not die of old age. The secrets of the transformation ritual are typically limited to the elite members of the elan secret society that exists, and they take these secrets to the grave before sharing them with lesser beings. Elans are often chosen for being exceptional in some way: sometimes it is because they excel in physical challenges, other times it is because of their quick wit or sharp intellect, or in some cases a natural ability to work with the psionic arts. But none of the elans could ever be described as normal, mediocre, or standard. While most elans, even those of non-human origin, physically resemble humans, there is usually something that stands out about every elan.

Racial Traits

Ability Score Modifiers: Elans gain a +2 bonus to one ability score chosen at creation to represent their varied nature.
Aberrant Blood: Elans are of the humanoid (aberrant) subtype.
Size: Elan are Medium creatures and have no bonuses or penalties due to their size.
Speed: Elans have a base speed of 30 feet.
Aberrant Nature: Although human in appearance, elans suffer from a nature slightly off from the rest of the non-elan society. They suffer a -1 penalty to Charisma-based skill checks when dealing with non-elans.
Naturally Psionic: Elans gain the Wild Talent feat as a bonus feat at 1st level. If an elan takes levels in a psionic class, she instead gains the Psionic Talent feat.
Resistance (Su): Elans can use psionic energy to increase their resistance to various forms of attack. As an immediate action, an elan can spend 1 power point to gain a +4 racial bonus on saving throws until the beginning of her next action.
Resilience (Su): When an elan takes damage, he can spend power points to reduce its severity. As an immediate action, he can reduce the damage he is about to take by 2 hit points for every 1 power point he spends.
Repletion (Su): An elan can sustain his body without need of food or water. If he spends 1 power point, an elan does not need to eat or drink for 24 hours.
Psionic Aptitude: When an elan takes a level in a favored class, he can choose to gain an additional power point instead of a hit point or skill point.
Languages: Elans begin play speaking Common. Elans with high Intelligence scores can choose any languages they want (except secret languages, such as Druidic).


For classes, there are five that will be perfect in Wrath: The Psion (the psionic version of a mage / sorcerer), the Cryptic (psionic rogue), marksman (specializes with a ranged weapon), Soulknife (melee warrior that manifests/summons his own weapons during combat, and can assign them abilities), and Aegis (a warrior that manifests armor with abilities chosen by the Aegis like a Soulknife does for his weapons). If you do bring in the Aegis and the Soulknife, a good prestige class to add will be the Metaforge.

For more info on these classes and the Elan race, visit d20pfsrd.com/alternative-rule-systems/psionics-unleashed/

If DSP's classes are off the table, an alternative will be to bring in the Occultist. You already have the Kineticist from the Occult classes, so I doubt you will run into any licensing issues.