Is Ethereum second?
If so wich Cryptocurrency Will be third, 4th. 5th.??
What You think wich coins are competing with Ethereum?
I Think Ethereum and Bitcoin are number one!
3rd. I Think its a BCH.
Do you have your favorite site like market cap or you are not aware that there is a site like Coinmarketcap where you can check the standing, volume and price of variosu coins in the market I guess you are not aware of these things, the standing will clearly answer all your questions and give you insight on various coins' performance.