Some coins on the alternative market can be very profitable when knowing when to buy them (not when the trollbox tells you to do so).
There's no crystal ball other than reading the numbers (data crunch) in order to identify the who's who of the crypto jungle. IMO the best indicators to look for in regards to alt-coins are the
Market Capitalization and the
Total Coin Supply and then the hashrate. Most of this information is already available online on certains CoinMarketCap dot com websites.
And for all of this to happen, you need that
special final ingredient. Just be patient, which seems to a pretty difficult for some itchy traders