Surely you should spread the investment. Put most in the top coins (ETH, NEO, QTUM), maybe part in coins like SUB, ICX, VEN or WTC. You should do your own research, don't expect all the coins to grow like they are at the moment.

If you are willing to try an ICO have a read of the HOQU whitepaper, according to most of the ICO rating pages it is currently very highly rated: https://www.hoqu.io/?ref_id=0c1d51f3465bda51aac7f3016f84a20e