Yes there so many ICOs out if you want to check if the ICO is a scam or not you should first at looking at the developers. It's good to the focus especially on the team behind them.Make sure  to check out if maybe the people behind a project that you want to invest in aren't the same as the ones behind other previous Scam ICOs.
Most of new ICO projects are first announced at the bitcointalk forum. Most of them are just spam. They post only to post. If there is no real people behind a project, no whitepaper or businessplan and if they have over solded their roadmap that could be a clear indication that it is a scam. Some literally just beg for money from strangers, while others hide behind allegedly real project, raise the funds then disappear or say that they have to end the project for whatever reason.