Trying to look out for scam coins is getting harder and harder as the scams get smarter with their trick. Some of the things to look out for are a solid whitepaper that explains things clearly, a dedicated team that is invested into the coin, a coin that could possibly solve a lot of real world issues without promising you the world in the palm of your hand etc.

There are some great coins about to hit the market that you should keep an eye out for. I've been watching a project that has recently gone live for the world to see, called Bitcoin Origin that has some ambitious but achievable objectives coming into the market

Have a read through this:
https://www.bitcoinorigin.io/