You should look for a ICO with a good team (check their linkedIn profile as well).
It should had a clear cause. Look at the issue they are trying to solve. Who else is in the same field and how they are addressing the issue.
Check the ICO ratings at ICObench coin gecko etc. Check how much its being talked about in media (hype is a also a factor).
last but not the least, check their whitepaper. If you do all that, if would ensure that you wont get scammed and probably will make good money
CopyTrack is the one which i like. but do your own research and just dont others words for something.