Ethereum is one of the best coins to invest in and avoid the risk of market depth, but when the supply of btc starts to increase, the value of ethereum also increases, but you better buy more of these coins, when the market looks back to normal. then you will get passive advantage in the long run.
Both Bitcoin and Ethereum are both excellent coins to buy at a time when the market has not moved sharply so the potential for profit will also not be too long to wait and it is not passive profit unless staked for both.