Litecoin is still one of the best altcoins to make profit. and it is growing with such a strength each time it rises.
then i would look into IOTA, it is going to have a good future specially in the short term with the pumps that it is going to have.
there are also a lot of smaller altcoins which get pumped every day that i sometimes invest in as a high risk trading option.
Intensecoin
http://intensecoin.com is one you may be aware of now but soon everyone will be talking about it. Intensecoin is a secure p2p VPN over the blockchain privacy coin; with CryptoNote roots like Monero. Very unique coin trading at 1 sat at a single exchange with majors soon to come. Check out the roadmap for 2018 at their site.