Jainists use mantras in daily prayers and in rituals to honor the Tirthankara, who was the Jainsit savior.  Vishishtadvaita Vishishtadvaita is amongst the principal branches of Vedanta, which itself is without doubt one of the six typical universities of Hindu philosophy. Mantras are central to Tibetan Buddhism, a lot so https://www.youtube.com/@Mahavidyabaglamukhi/