As has been suggested do your research and dont fall for hype tactics. It is best to find time tested experience in the developer group. Do they have past success...have they been around a long time?...etc. A track record that can be verified is hard for scams to fake. The closest one to what I am looking for is with -MTC-, Marinecoìn. They arent trying to sell coins. For AI directed promotional activity they give 20,000 -MTC-. You may think...are they crazy but actually when you think about it they are ahead of the game. The success of a coin depends on the community that supports it. What better way to gain a loyal supportive community than by allowing them to earn a significant chunk of the coin. Their goal is a 100% decentralized dev-less community. Time dilution technology insures fair distribution to the community. Zero fees for transactions. There is a lot more great things about this project you can read about on their site