Mina is a coin of the world's lighest blockchain built on elegant recursive zk-SNARKs solution. The size of the blockchain is just 22 Kb.
You can find a list of exchanges where you can buy Mina and corresponding guides how to do this here:
You can stake Mina coin to gain passive income. The current APR varies from 12% to 24%.
You can find guides how to stake Mina here:
You can easily calculate your staking profits using StakeTab Rewards Calculator and even get a list with the most attractive staking providers for you. The list covers the most important parameters of staking providers which helps you to choose the most attractive provider which one your funds will definitely like.