i'm still prefered for investing in major altcoin from Coinmarketcap data, especially from top 10 altcoin listed on Coinmarketcap because they are trusted altcoin and already exist for few year untill now
Well, it's a pretty good strategy, but it doesn't always work the way people want. You only have to look at statistics over the last 3-9 years. Many good coins at first glance, has been gone a long time from top 10.