The best haircut for someone in an existential crisis will depend on their personal style, preferences, and the shape of their face. In general, however, it may be helpful to choose a simple and low-maintenance haircut that is easy to style and manage. This can help reduce stress and allow the person to focus on addressing the underlying issues causing their existential crisis. Ultimately, the most important thing is to choose a haircut that makes the person feel comfortable and confident, as this can help them navigate their crisis with greater ease.