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
We only buy in low then sell in high any kinds of coins here so start in btc then find other coin that follow it like eth,bnb,neo and bch then repeat what you know about btc and of course if they run new coin here in crypto they want to surpass bitcoin so they have different strategy to become popular too so find that like read their future plan about their own coin