There are plenty of opportunities in Crypto. Don't get distracted by all the new coins with fancy use-cases and ICO this and Whitepaper that. If you are relatively new to Crypto I would suggest looking at some of the older coins and see how they have done over the years.
Feathercoin - Fast transactions, the algorithm has changed from Scrypt to Neoscrypt to make it GPU-friendly.
Unobtanium - Very rare, merge mined with BTC.
Peercoin - Pretty sure this coin was the first staking coin.
Terracoin - Another staking coin, now with masternodes.
Each one of these coins is still around and active. Don't be caught up in the hype of new coins without looking at some of the old coins.
my opinion is also so, we must be careful in buying crypto for investment, if not careful we will lose, you can see the coins that have been famous for the buy, I think so