You can search a good signature campaign by clicking marketplace(altcoins)> Bounties (Altcoins) much better if you have a good rank like full member up ,you can get much bigger if you have higher position in bitcointalk .. Once you join in bounties you need to analyze every platform,project, whitepaper , backgroud of all dev/members and how active they are in social media and also to the participant because  most of bounty program are scam they making you wait for nothing .. Yes !! We are not risking our money but wasting our time especially when we encounter scam icos