Crypto Mining Group has completed their integration of Avantage (AVN) in their platform; their goal is to provide an online platform so people can "stake" many PoS coins that they judge as interesting, such as AVN. Many people do not like to do their own staking, leaving their computer turned on 24h/7 - Crypto Mining Group is made for them.  They are online since a long time ago, their site has demonstrated its safety; enjoy!