Lord Rama (7th avtar of Dashavatar) is most sacred and revered by Hindus.
Dashavatara refers to the ten incarnation of Lord Vishnu to eradicate the evil forces, to restore the Dharma and eradicate Adharma.
Satya Yug – (1) Matsya, (2) Kurma, (3) Varaha, (4) Narasimha
Treta yug – (5) Vamana, (6) Parashurama, (7) Rama
Dwapara yuga – (8) Balarama (9) Krishna
Kali yug – (10) Kalki, the last incarnation.
Some people replace Balarama avtar with Buddha which is disuputed as Budhism religion is unique religion and practices follwoed are different than the other nine avtars.
Source: Dharma-Sindhu, and Nirnaya-Sindhu, Kuchipudi dance songs,