Last two years maybe you can make bounty campaign s your considered job because have higher payment and almost all of coins could sell with higher price, but today still have chance just little payment with lower price coins after listing on market.
It completely depends upon the campaign you choose because if you manage to hold them for more than six months, then you will see the results of the coin. In the current situation of the ICO's, it is very hard to find a potential company which has an active team for the developments.