There are some factors that need to Notice before Investment on any Altcoins.
Market cap of that Coin
24h volume of that coin.
Maximum supply of coin
Blockchain Technology that Coin is using.
Globalization
Community behind that Altcoin
Whitepaper
Liquidity
If I missed anything then include this in this Topic
I think you may add the people behind the project development, the devs and theier updates. They should be active in informing their clients investor and supporters in twitter, telegram and website or any social means to reach them.