Probably Top 10 coins of cryptomarketcap are worth investing because they have good use case.
This is a common mistake among newcomers who think just because a bunch of altcoins are on top of a list using an arbitrary ranking system that used a fake variable to sort them, they think it means these coins are "good to invest". The fact is that most of these so called "top 10" altcoins are among the worst coins that have ever been created.
#2 ETH -> centralized, premined, mutable blockchain, insecure, too expensive due to lack of scalability, filled with bugs
#3 USDT -> centralized, premined, mutable blockchain, in secure, too risky to trust, shady
#4 BNB -> centralized, premined, in full control of an exchange!, too risky to trust
#5 ADA -> semi centralized, premined, basically is the same as ETH and is just as useless
#6 XRP -> centralized, premined, mutable blockchain, shady
#7 DOGE -> a joke coin!
#8 USDC -> poor version of USDT
#9 DOT -> centralized, massive supply which I believe was premined, no real world utility
#10 BUSD -> poor version of USDT but controlled by another company