Kurma (the tortoise)
Dhanvantari, Mohini and other avtaras of Samudra manthana
Note: There might be few others as well.
What are the Avatarams of Vishnu described in the Yuddha Kanda of the Ramayana?
I am giving here the opinion of Sri Chandrasekharendra Saraswathi MahaSwamiji on the topic. Quoting from the book "Hindu Dharma", which is composed of various speeches given by him.
Our nation, it is often alleged, does not have a sense of history.
In my opinion the Puranas are history. But to our educated people today history means the history ...