A lot of ICO will provide working products in 2018. It may make profit to invest to coins having small market cap several months before product debut.
I expect cvc and eos and cnd. Some of them may make product in 2019. You can do the same way that year.
what about spectre.ai?
I think spectre.ai will be good too, because its project about exchanger and trading. let's look at the newly completed ICO Coss project and move in the exchanger field, the price tends to be stable.