You can find all the available crypto currency on coinmarketcap.com and the coins are listed on the basis of marketcap value so you can explore each and every coin if you want or you can search your desired coin on the search and click on that coin will give you all the details about that coin.It will give the details about price charts,websites and everything.If you still want to know more about the coin you need to read the Whitepaper or you can go to their announcement thread on our forum and ask about your doubt.
You can understand about an ICO just by reading the whitepaper but most of the ICOs are turning into scams so you also need to research about the development team of that ICO.