I think that olanzapine is perhaps the second-most effective one, behind clozapine. Sometimes they also augment with small amounts of D2 partials like Vraylar, Abilify, or Rexulti. But as for side effects of the three you lsited, abilify might cause the most restlessness. Olanzapine would cause the most weight gain. Seroquel would cause the most fatigue. Hard to find a real ideal one. Even clozapine can cause some unpleasant side effects.