Yes, I recommend my friends to invest only in the top 100 altcoins. Better if they invest 70 % just in Bitcoin. Newbies should first learn a lot about the cryptocurrency market before investing in new projects.
Not top altcoins are safe. Even some scam & shit altcoins already in top 100. Few days ago SushiSwap CEO scammed & Sushiswap is now 60 no position. Better to invest wisely not invest by coins rank.
the range for the top 100 coins is still quite risky for newbies. In fact, I only chose a few coins from the top 20 to make transactions or hold. to be honest, I'm the type of person who is pretty afraid of holding new coins in the long run. because of that, I always aim for one of the top 10 coins on coinmarketcap to hold for the long term.