How do you do your own research if the coin is a good investment?
For me, I always look on the purpose of the project, the team behind it, what exchanges is it available on etc. And one of the important thing for me is the total supply of the coin.
I also research if the coin is Proof of Work (POW), Proof of Stake (POS), Pre-mined or other.
Your searching quality not bad I think! you can also checked it's market value and yes if any coin trusted well rising and something stable and many of exchangers support then this coin is good I think.