In some traditions, Balarama replaces Buddha in the Dashavatara list of Vishnu’s ten major avatars.
The Dashavatara is not presented in exactly the same form by every Hindu scripture, sect, or region. The most familiar modern sequence includes Krishna as the eighth avatar and Buddha as the ninth, followed by the future avatar Kalki. Some Vaishnava traditions instead include Balarama, Krishna’s elder brother, in the set and omit Buddha.
This variation is partly theological. Krishna-centered traditions may treat Krishna as the supreme source of avatars, while other traditions count him within the ten. Balarama, also called Balabhadra, is widely regarded as an incarnation or manifestation associated with Shesha, the serpent linked to Vishnu. He is commonly depicted carrying a plough and mace.
The wording “in some traditions” matters: there is no single universally accepted Dashavatara list. Some lists include both Balarama and Buddha, while others substitute regional figures such as Vithoba or Jagannath. Thus Balarama is a valid answer for the stated variant, but not for every standard version of the ten-avatar sequence.