Random idea brainstorm.
But I.E. imagine being a B'aara cleric and being able to brew.
Perhaps you could have some signature brews related to B'aara like instead of Cure Serious Wounds you can make B'aara's Cures which is CSW but with a higher CL.
Agasslakku being able to brew a stronger Divine Favor, Warrior's Favor.
A necromancer Wizard spellschool being able to brew stronger inflict wounds (for his undeaddos)
Was just a thought